4040 SS RO Membrane Housing

P1 214,38

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4040 Stainless Steel RO Housing – Heavy‑Duty Membrane Vessel

The 4040 Stainless Steel RO Housing is a robust pressure vessel crafted from 304‑grade stainless steel. It holds a standard 4″ x 40″ RO membrane and offers superior strength and corrosion resistance compared with plastic housings, making it ideal for demanding water purification systems.

Because this housing is built to endure up to 300 PSI, it works well in industrial, commercial, and high‑capacity residential reverse osmosis applications where durability and pressure resistance are essential. Its strong body helps protect internal components, even under continuous use.

Technical Specifications

Here are the key details for this RO membrane housing:

Membrane Compatibility: Standard 4″ x 40″ RO membranes (most brands)
Housing Material: 304 stainless steel for strength and rust resistance
Maximum Working Pressure: 300 PSI (≈21 bar)
End Cap Material: Glass‑reinforced polyimide
O‑Ring Material: EPDM seals for secure pressure retention
Port Sizes: Feed and concentrate 3/4″ BSP female; permeate 1/2″ BSP female
Closure Type: U‑clamp design for secure sealing and easier maintenance

This stainless steel construction delivers excellent corrosion resistance, so the housing lasts longer than many FRP or plastic housings in environments where metal contact and moisture are constant.

How It Works in RO Systems

In a reverse osmosis setup, high‑pressure feed water enters the housing and moves along the membrane’s surface. First, water flows through the inlet port. Then, the semi‑permeable membrane separates to produce purified water (permeate), which exits through the centre outlet, while reject water leaves via the side port. Therefore, the housing supports effective water purification with minimal leaks and stable performance.

Benefits of Stainless Steel Construction

Using a stainless steel RO vessel offers several advantages:

Long Life: Stands up to corrosion better than non‑metal housings.
Pressure Reliability: Designed for high‑pressure operation with stable performance.
Easy Maintenance: The U‑clamp design allows quicker membrane changes.
Wide Use: Suitable for factories, labs, food & beverage plants, and large home setups.

Installation Tips

Mount the housing on a stable frame, and always use proper thread sealant on BSP fittings to prevent leaks. Also, check the EPDM O‑rings regularly and replace them if worn, to keep the system tight and effective.

Weight	10 kg
Dimensions	110 × 24 × 12 cm

Return And Refund Policy

INSTORE EXCHANGES AND REFUNDS

For your convenience, item(s) purchased online may be exchanged or refunded at any Puritech store within South Africa, provided all online return policy conditions are met. A refund will be provided to you by crediting your original method of payment. Please note that cash refunds will not be provided under any circumstances and courier charges cannot be refunded.
Item(s) purchased at any Of Our store within South Africa can only be returned at a Puritech store within South Africa.

Puritech Online Returns Policy

There may be times when you will need to return an item purchased from us. Our Returns Policy is designed to assist you with your return. The benefits given by our Returns Policy are in addition to other rights and remedies you may have as a consumer under the Consumer Protection Act (CPA), as well as any other applicable acts.

If you wish to return any item(s) you have purchased, you can either return the item(s) via courier to our online store or in-person to a Puritech store within South Africa (only) within 14 days from the date of purchase…

We encourage you to return your parcel via Fast Way, Courier Guy, FedEx, or ParcelIt traceable courier services as all returned parcels remain the responsibility of the purchaser until received by Puritech.

Store purchases cannot be returned or refunded online.

Returns Policy Conditions

At Puritech we want to ensure you love the items you purchase. If you have changed your mind on a purchase we will exchange your item or refund your original method of payment provided that:

You return the item within 14 days (inclusive) from the date of purchase.
You produce your original Puritech invoice (receipt) when you return the item
The item is in original saleable condition:
With all original tags still attached
In an unopened and unused state
A return form is completed and accompanies your item(s) being returned
In original packaging

If you are not able to comply with these requirements, Puritech reserves the right to refuse an exchange or refund on change of mind items. Puritech will not accept a bank statement as proof of purchase.

We regret that we are unable to accept the exchange or return of the following items for change of mind for hygiene reasons:

Open Filters
Open Membranes
Used Reverse Osmosis Systems

Online Exchanges and Refunds

Online Exchanges

If you would like to exchange an item(s) for an alternative item(s), please complete the online Return Request form that is located within My Account under ‘My Orders’ prior to sending the item(s) back.

Exchanges can only be exchanged for the same value of the purchase price of the item being returned.

Your item (s) that you wish to return needs to be sent back to our online returns address with the relevant return documents, duly completed, and a tax invoice (receipt).

If the alternative item is no longer available, provided all the Returns Policy Conditions are met, a refund will be provided to you crediting your original method of payment. All return courier costs will be for your own expense and this will be deducted from your refund amount.

Online Refunds

To obtain a refund please fill out the online Return Request (RMA) form that is located within My Account under ‘My Orders’ prior to sending the item(s) back.

A refund will be provided to you crediting your original method of payment, providing all the Returns Policy Conditions are met and our warehouse has received the original item that is being returned. Cash refunds will not be provided under any circumstances.

COMPLETING A RETURNS REQUEST FORM ONLINE

Log into your Puritech “My Account” and go to “My Orders”.
Click on the order that contains the item(s) that you wish to return or request an exchange for and click on the returns button.
After you have submitted your return request, one of our friendly staff members will get in contact with you to organize a collection.
Once you have sent your item(s) back to our warehouse, our warehouse will authorize the refund.

Before sending, please ensure all details on this form are correct. You will also need to write the returns number on the outside of the parcel. You will be notified by email of the status of your exchange or refund.