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QUICK EXCHANGE SYSTEM® (QES)

Replace complete treatment tanks quickly, safely and with minimal downtime

Quick-Change Water Treatment

Replace the treatment tank / Keep the system moving

Watch Water® Quick Exchange System provides a fast and practical method for installing, removing and replacing compatible treatment-media tanks.

The QES uses the exclusively manufactured Quick Exchange Filter Head to connect compatible FRP pressure vessels to the water line. When the treatment medium reaches its replacement point, the complete tank can be disconnected and exchanged for a prepared replacement tank. The used vessel may be returned to an approved distributor for media handling or refilled on-site by appropriately trained personnel. The QEFH 2.2 supports compatible treatment systems with published flow rates up to 15 m³/h.

Less service time / Simple tank replacement

QUICK EXCHANGE SYSTEM Introduction

One connection platform.
Multiple compatible treatment media.

QES provides a reusable hardware platform for compatible filtration and adsorption media. Treatment performance is determined by the selected medium, vessel size, water chemistry and operating conditions.

Point-of-Entry Treatment

Quick-change pressure vessels for compatible residential and commercial POE systems.

Commercial Water Filtration

Treatment-tank replacement for installations requiring reduced service downtime.

Adsorption Systems

Compatible Watch Water® adsorber media may be installed following written approval and sizing.

Specialty Filter Media

Supports approved granular filtration media suitable for the QES hydraulic configuration.

Portable Treatment Systems

Replaceable media vessels for movable and temporary water-treatment equipment.

Media Service Programs

Used tanks can be exchanged, transported and serviced through participating distributors.

Four mechanical functions / Integrated into one filter head

QL

Lever-Assisted Tank Connection (QUICK-LOCK)

The Quick Exchange Lever and Handle Lock secure the valve assembly to a compatible pressure-vessel head without permanently replumbing the complete system.

PR

Controlled Depressurization (PRESSURE-RELEASE)

An integrated pressure-release feature supports safer servicing after the water supply has been isolated and the system has been fully depressurized.

TS

Complete Vessel Replacement (TANK-SWAP)

An exhausted media tank can be removed and replaced with a prepared vessel, helping reduce treatment-system downtime.

MR

Distributor or On-Site Refilling (MEDIA-REUSE)

Spent tanks may be transferred to an approved distributor or refilled by trained personnel using the correct compatible medium and filling quantity.

How the Quick Exchange System works

QES separates the permanent plumbing connection from the replaceable treatment vessel, creating a modular interface between the water line and compatible media tank.

  • Permanent Plumbing Interface – The QEFH remains connected to the inlet and outlet plumbing while the compatible treatment tank can be removed for service.
  • Sealed Tank Connection – The head holder, O-ring, top distributor and handle lock create the connection between the valve body and pressure vessel.
  • Controlled Internal Flow – Water is directed through the riser tube, distributors and selected treatment medium according to the approved system configuration.
  • Modular Media Replacement – The entire vessel can be exchanged, or spent medium can be removed and replaced while reusing the compatible pressure tank and internal components.
QES Science and Technology
Product Specifications

QEFH 2.2 Specifications

Published operating limits, plumbing connections, and compatible tank sizes for the Quick Exchange Filter Head.

Published QEFH 2.2 Specifications
Parameter Published Value
ModelQEFH 2.2
Plumbing connections1-inch BSP and NPT
Top tank connection2.5 inches
Distributor pilot1.05 inches
Pressure range1.4–8.6 bar / 20–125 psi
Water temperature range1–43°C / 34–110°F
Ambient temperature range1–52°C / 34–125°F
Maximum published flow15 m³/h / 66 gpm
Compatible tanks7 × 17, 8 × 35, 8 × 44, 10 × 44, 10 × 54 and 13 × 54
QES Component Checklist
Part # Component Description
01Quick Exchange Lever
02Valve Main
03Pressure Release
04Head Holder
05Cover Cap
06Handle Lock
07Top Distributor
08O-ring
09Riser Tube
10FRP Pressure Tank
11–13Bottom Cap Distributor, Bottom Cap for Tank, Bottom Distributor

Explore our QES poster library

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Quick Exchange System
2024

Quick Exchange System

A modular approach to treatment-media vessel replacement.

Inside the QEFH 2.2
2024

Inside the QEFH 2.2

Explore the lever, valve, pressure release and locking components.

Replace the Tank, Not the Plumbing
2026

Replace the Tank, Not the Plumbing

Reducing service work through a permanent plumbing interface.

Safe Tank Replacement
2026

Safe Tank Replacement

Isolate, depressurize, unlock, replace and recommission.

Compatible Media Matters
2026

Compatible Media Matters

Why every medium must be approved for the QES configuration.

Up to 15 m³/h
2026

Up to 15 m³/h

Compact QEFH 2.2 performance for compatible water-treatment systems.

Frequently
Asked Questions

Important information about QES installation, tank replacement, media compatibility and safe servicing.

Contact Support
What is the Quick Exchange System?
QES is a modular filter-head and pressure-vessel system that allows compatible media tanks to be removed and replaced with reduced plumbing work.
What is the QEFH 2.2?
It is the Quick Exchange Filter Head used to connect, lock and release compatible QES treatment vessels.
Does QES itself remove contaminants?
No. QES is the hardware platform. Treatment performance depends on the selected medium, system design and operating conditions.
Can any filter medium be used?
No. The manual states that only compatible media approved by Watch Water® or an authorized distributor should be used.
Why can incompatible media be dangerous?
Certain media may chemically or physically damage the head or pressure vessel. The manual warns that unsuitable media could create severe equipment and safety hazards.
What is the maximum flow rate?
The QEFH 2.2 has a published maximum flow of 15 m³/h or 66 gpm. The actual system flow may be lower depending on media, vessel size and pressure drop.
Which tank sizes are compatible?
The manual lists 7 × 17, 8 × 35, 8 × 44, 10 × 44, 10 × 54 and 13 × 54 tanks.
Can the tank be exchanged while pressurized?
No. The water supply must be isolated and the complete system fully depressurized before any connection is opened.
Can customers refill the media themselves?
Only trained users following the approved instructions should do so. The correct media type, quantity, internal components and personal protective equipment are essential.
Can the used tank be returned to a distributor?
Yes. The manual allows used tanks to be sealed and transferred to a participating distributor for appropriate media handling or disposal.
Can QES be installed outdoors?
Only with suitable protection against direct sunlight, extreme humidity, insects, freezing and excessive ambient temperatures.
What should be checked during routine maintenance?
Inspect operating pressure, flow, leakage, abnormal noise, tank alignment, head security andшель the performance of the installed treatment medium.

Build a quick-change treatment system

It all starts with the correct medium and vessel configuration.

Send us your flow requirements, tank size preferences and media type. Our specialists will help evaluate the Quick Exchange System® (QES) and QEFH 2.2 filter head for your application.

Faster Media Replacement Through Modular Engineering

Water treatment facility overview