What Enpress does

ENPRESS LLC is a privately held US manufacturer of composite pressure vessels and point-of-entry (POE) water filtration systems, headquartered in Eastlake, Ohio with a secondary office in Scottsdale, Arizona acquired through the 2022 purchase of Applied Process Equipment (A.P.E.). The company designs and builds filtration hardware around an industry-exclusive copolymer polypropylene liner formulation, outperforming traditional polyethylene on chemical and impact resistance in harsh climates, and supports its vessels with a proprietary media family (ATOMUS: F11/Z21 for arsenic, MD1 for oxidation/adsorption, O26 for iron/manganese/hydrogen sulfide) and patented distribution systems (Vortech, Mid-Vortech) that reduce backwash water use by at least 30%.

The product portfolio centers on the ONE Cartridge Tank platform and its E3 family of integrated-bypass systems, with point-of-entry configurations serving residential, light commercial, commercial/industrial, and institutional/municipal customers. Differentiated offerings include the PIONEER line of 0.5-micron NSF/ANSI 53-certified filters for whole-house lead, cyst, PFOA/PFOS, arsenic, and heavy metal removal, plus Vortech-patented hydraulic distribution, and ultrafiltration/membrane products (Poly-UF, R4). All products are 100% manufactured in the USA and carry NSF/ANSI 42, 44, 53, 61, WQA Gold Seal, IAPMO, and CE certifications.

Revenue is generated through two streams: (1) initial hardware sales of vessels and filtration systems, and (2) recurring replacement filter and cartridge sales for the installed base. Products are sold exclusively through licensed plumbers and water treatment professionals via dealer/distributor networks, with no direct-to-consumer pricing disclosed. Pricing is quote-based and certified gallon ratings (e.g., 100,000–350,000+ gallons per cartridge) drive the consumable replacement cycle that underpins the recurring revenue model.

Name

Enpress

Legal name

ENPRESS LLC

Website

https://enpress.com

Company type

Private

Operating status

Operating

Headcount range

51–100 employees

Short description

ENPRESS LLC is a US-based manufacturer of composite pressure vessels and point-of-entry water filtration systems, serving residential, commercial, and institutional customers through licensed plumber and dealer networks with proprietary liner technology and NSF-certified filtration media.

Ownership category

akta.pro rank

Product category

Water Treatment Equipment and Filtration Systems

NAICS

Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers (42372), Plastics Pipe and Pipe Fitting Manufacturing (326122)

SIC

Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070)

akta.pro primary industry

Water Filtration, Treatment & Softening Plumbing Products (IMADALAK)

akta.pro secondary industry

Replacement Filter Cartridges & Consumables (CRAJAJAH)

Keywords

• Composite pressure vessels
• Water filtration systems
• Point-of-entry filtration
• Water treatment media
• PFAS removal filters

Headquarters

HQ city

Eastlake

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Water Filtration Products and Systems: ENPRESS manufactures and sells composite pressure vessels, filtration systems, and proprietary filtration media for water treatment. Revenue is generated through product sales including initial systems and recurring replacement filters/cartridges. Products are sold through professional distribution channels with licensed plumbers and water treatment professionals as the primary installers.
2. Replacement Filters and Cartridges: Recurring revenue from replacement filter cartridges for the installed base of PIONEER, E3, Cartridge Tank and other filtration systems. Filters have certified gallon ratings (e.g., PIONEER up to 100,000+ gallons).

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

ENPRESS LLC designs and manufactures composite pressure vessels, point-of-entry filtration systems, and proprietary filtration media for residential, commercial, and institutional water treatment. Its core vessels (ONE Cartridge Tank, ONE E3, E3-M PIONEER, Poly-UF, Composite Pressure Vessels, DI Exchange Vessels) are paired with patented distribution technology (Vortech/Mid-Vortech) and proprietary media (ATOMUS F11/Z21, MD1, O26) plus PIONEER filters to address lead, PFAS, arsenic, cysts, iron/manganese and other contaminants. Products are 100% Made in the USA and sold through licensed plumbers, water treatment professionals, and dealer/distributor channels.

Product overview

ENPRESS LLC is a worldwide leading manufacturer of composite pressure vessels and filtration systems for water treatment, with products 100% Made in the USA. The product portfolio centers on the ONE Cartridge Tank platform, which serves as the core vessel system for multiple filtration solutions. The ONE E3 Filtration System and E3-M PIONEER Filtration System are the primary system offerings, with the E3 series available in multiple variants including E3-Topmount and E3 PIONEER REDOX configurations. The ATOMUS family (F11, Z21, MD1, O26) provides proprietary filtration media solutions for specific contaminant targets including arsenic, iron, manganese, and heavy metals. The PIONEER filter line (Pb, PF, As, OX) offers targeted solutions for lead/cyst/PFOA/PFOS removal, PFAS removal, arsenic removal, and sulfur/tannin/heavy metal removal. Supporting products include Vortech and Mid-Vortech distribution technologies, Composite Pressure Vessels, DI Exchange Vessels, and Poly-UF Ultra Filtration. The R4 Filtration System represents a new membrane filtration direction through the ENPRESS Connect platform.

Differentiator

Problem solved

Functional benefit

Brands

• ATOMUS: Proprietary filtration media solutions for the water treatment industry engineered to target Arsenic, Phosphate, Chromium, Fluoride, PFAS and others for Residential, Light Commercial, or Industrial Water Treatment applications.
• PIONEER
• Vortech
• E3
• Cartridge Tank
• Poly-UF

Products and services

• ONE Cartridge Tank Filtration System Revolutionary patent-pending filtration tank system with top and bottom openings, snap-ring design, and full radial seal caps for easy filter replacement; lightweight, cost-effective, 100% non-metallic alternative to 2.5-inch or 4.5-inch housings or stainless steel cartridge housings, NSF 44 and 61 listed.
• ONE E3 Filtration System Cartridge tank solution with exclusive integrated bypass using industry standard threaded fitting kit connections, available in six filtration series (green, orange, yellow, blue, white, silver) with flow rates up to 60 gpm for residential, light commercial, and commercial point-of-entry installations.
• E3-M PIONEER Filtration System Advanced filtration system combining integrated bypass and meter with PIONEER POE filter for whole-house lead, cyst, PFOA/PFOS, arsenic and heavy metal removal; first-of-its-kind solution certified to NSF/ANSI 53.
• E3-Topmount Filtration System Top-connecting E3 filtration system with modified filter cap for direct connection to in/out head at top of vessel; snap-ring technology for no-tools filter replacement; compatible with blue, yellow, orange, and AZURE-D filtration series; NSF/ANSI 61 and 42 listed, 100% non-metallic.
• E3 PIONEER REDOX Filtration System Twin Cartridge Tank filtration solution for removal of iron, manganese, and hydrogen sulfide without backwashing; lead-lag configuration with ATOMUS O26 media oxidizing contaminants in first housing and 5-micron filter capturing oxidized particles in second; service flow rates up to 7 gpm.
• ONE Poly-UF Ultra Filtration Solution 0.02-micron ultrafiltration vessel and system providing maximum service flow rates of 12 gpm; treats colloids, bacteria, cysts, viruses, turbidity, and tannins; backwashable for water reclamation and rainwater applications.
• Vortech and Mid-Vortech Distribution Technologies Patented and patent-pending distribution technology for water treatment tanks that creates fluidity of the media bed, extends contaminant removal capacity, and reduces backwash flow rates by at least 30%; eliminates need for gravel and hub and lateral assembly.
• Composite Pressure Vessels World-leading composite pressure vessels with exclusive copolymer polypropylene liner design, computer-controlled cut lengths consistent within 3/16 inch; light commercial variants feature 4-inch stainless steel inlets eliminating cross-threading.
• DI Exchange Vessels Premium deionization exchange vessels with exclusive copolymer polypropylene liner providing superior performance and impact resistance; computer-controlled cut-lengths achieve consistent vessel height within 3/16 inch; DI Exchange Poly Bases save up to 16 pounds per vessel.
• ATOMUS Filtration Media Family Proprietary family of filtration media solutions including F11 and Z21 binary adsorption medias for arsenic removal, MD1 patented solid-state oxidizing media for oxidation/adsorption of organics, heavy metals, hydrogen sulfide, iron and manganese, and O26 granular media for simultaneous oxidation of iron, manganese and hydrogen sulfide; NSF/ANSI 61 certified.
• PIONEER Filtration Filter Line Line of PIONEER filters including Pb (0.5-micron lead, cyst and PFOA/PFOS removal, NSF/ANSI 53 certified), PF (PFAS removal to non-detect levels below 1 ng/L, exceeding EPA <4 ng/L), As (non-backwashing arsenic III and V removal using ATOMUS F11 media, certified to NSF/ANSI 53), and OX (sulfur, iron, manganese, color/tannin/organics, and heavy metals reduction).
• R4 Filtration System Membrane filtration system from the ENPRESS Connect platform, representing a new membrane filtration technology direction for the company.

Quantifiable outcome

• PIONEER PF removes PFAS to non-detect levels (<1 ng/L), exceeding EPA standards of <4 ng/L
• +4 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Applied Process Equipment (A.P.E.)coreOthers · 21 June 2022ENPRESS LLC acquired Applied Process Equipment (A.P.E.), a leader in water filtration solutions based in Scottsdale, Arizona. This acquisition expanded ENPRESS's water filtration capabilities and market presence.

Scale indicators3 records

Recent moves12 records

Expansion highlights8 records

Broad incumbents

• Culligan: Established water treatment brand operating through a dealer network selling residential and commercial filtration, softening, and treatment systems. Closely aligned go-to-market (professional installer/dealer channel) and overlapping product set (POE, filtration media).
• Watts Water Technologies: Major manufacturer of water treatment, plumbing, and flow-control products with extensive residential and commercial filtration lines. Closely comparable to ENPRESS in product category and channel (plumbing professionals) but operates at much larger scale with a broader portfolio.
• A. O. Smith: Water treatment and water heating manufacturer with residential and commercial filtration product lines. Comparable category and professional channel; much larger scale and broader portfolio including water heaters and boilers.
• Veolia Water Technologies: Global water treatment solutions provider with municipal, industrial, and commercial filtration systems. Comparable in PFAS remediation and advanced media technology but operates primarily at institutional and municipal scale rather than residential POE.
• Pentair: Global leader in water treatment with a broad residential and commercial filtration portfolio including whole-house POE systems. Comparable category and target customer (licensed plumbers, dealers, homeowners) but vastly larger scale, distribution, and brand recognition.
• 3M Purification: Global filtration manufacturer with broad product portfolio spanning water, air, and industrial filtration. Competitor in cartridge and POE filtration with significantly larger R&D, certification infrastructure, and OEM relationships.

Direct peers

• SpringWell Water Filtration Systems: Direct-to-consumer and professional installer of whole-house water filtration systems targeting lead, PFAS, and contaminant removal. Closely comparable product positioning in POE filtration with overlapping target customer (homeowners, plumbers).
• Viqua (Trojan Technologies): Manufacturer of UV and point-of-entry water filtration systems for residential and light commercial applications. Comparable POE product positioning and professional installer channel with overlap in microbiological and contaminant removal.
• KX Technologies: Filtration cartridge and media manufacturer serving OEM and private-label customers with residential, commercial, and industrial filtration products. Closest direct peer to ENPRESS in cartridge/media manufacturing model and technology focus.
• iSpring Water Filtration: Manufacturer of whole-house and point-of-use water filtration systems including lead, PFAS, and cyst removal cartridges. Direct peer in cartridge-based POE filtration with comparable product technology (0.5-micron nominal, certified contaminant removal).

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/enpressllc

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Enpress