Gen4 Deals

Upgrade your WD-S-8K-ADV-DC to WD-G4-DC

Our Gen4 advantages: Improved media. In-house made durable housings.

Our Gen4 WD-G4-REP is an alternative to the WD-S-8K-REP (Gen3) and compatible with your system.  The mounting head is similar.
Please note: Your existing mounting head might be ‘married’ to the gen3 WD-S-8K-REP. When replacing from Gen3 to Gen4, at the stage of replacement, please check for leaks (less than 3%) and let us know. We will ship a brand new mounting head.

If you have decided to upgrade to a Gen4 system, don’t miss the following deals…

Buy 2 X WD-G4-REP replacement cartridges (Instead of the WD-S-8K) and get the Gen4 single mounting head with DC hoses for free – Click here

30% Discount on a Gen4 WD-G4-DC system – Click here

Upgrade your WD-S-8K-ADV-JG to WD-G4-JG

Our Gen4 advantages: Improved media. In-house made durable housings.

Our Gen4 WD-G4-REP is an alternative to the WD-S-8K-REP (Gen3) and compatible with your system.  The mounting head is similar.
Please note: Your existing mounting head might be ‘married’ to the gen3 WD-S-8K-REP. When replacing from Gen3 to Gen4, at the stage of replacement, please check for leaks (less than 3%) and let us know. We will ship a brand new mounting head.

If you have decided to upgrade to a Gen4 system, don’t miss the following deals…

Buy 2 X WD-G4-REP replacement cartridges (Instead of the WD-S-8K) and get the Gen4 single mounting head with quick connect JG fittings for free – Click here

30% Discount on a Gen4 WD-G4-JG system – Click here

Upgrade your WD-D-8K-FRM-ADV-DC to WD-D-G4-FRM-DC

Our Gen4 advantages: Improved media. In-house made durable housings.

Our Gen4 WD-G4-REP  and WD-FRM-REP are alternative to the Gen3 WD-S-8K-REP and WD-8K-FRM and compatible with your system.  The dual mounting head is similar.
Please note: Your existing mounting head might be ‘married’ to the gen3 cartridges. When replacing from Gen3 to Gen4, at the stage of replacement, please check for leaks (less than 3%) and let us know. We will ship a brand new mounting head.

If you have decided to upgrade to a Gen4 system, don’t miss the following deal…

Buy the necessary WD-FRM-REP (1st stage cartridge. Replacing the WD-8K-FRM) and WD-G4-REP (2nd stage cartridge. Replacing the WD-S-8K) and get the Gen4 dual stage mounting head with DC hoses for free – Click here

 

Upgrade your WD-D-8K-FRM-ADV-JG to WD-D-G4-FRM-JG

Our Gen4 advantages: Improved media. In-house made durable housings.

Our Gen4 WD-G4-REP  and WD-FRM-REP are alternative to the Gen3  WD-S-8K-REP and WD-8K-FRM and compatible with your system.  The dual mounting head is similar.
Please note: Your existing mounting head might be ‘married’ to the gen3 cartridges. When replacing from Gen3 to Gen4, at the stage of replacement, please check for leaks (less than 3%) and let us know. We will ship a brand new mounting head.

If you have decided to upgrade to a Gen4 system, don’t miss the following deal…

Buy the necessary WD-FRM-REP (1st stage cartridge. Replacing the WD-8K-FRM) and WD-G4-REP (2nd stage cartridge. Replacing the WD-S-8K) and get the Gen4 dual stage mounting head with DC hoses for free – Click here

 

Our Gen4 advantages: Improved media. In-house made durable housings.

Our Gen4 WD-G4-REP  and WD-FRM-REP are alternative to the Gen3  WD-S-8K-REP and WD-8K-FRM and compatible with your system.  The dual mounting head is similar.
Please note: Your existing mounting head might be ‘married’ to the gen3 cartridges. When replacing from Gen3 to Gen4, at the stage of replacement, please check for leaks (less than 3%) and let us know. We will ship a brand new mounting head.
Or check on our deals for a full Gen4 system, here.

Specifications

Shipping & Returns

If you are not entirely satisfied with your purchase, we're here to help.

Our products can be returned within 60 days of the original purchase date. A new product may be exchanged for another product or returned for a refund. A return for a refund will be a subject for 10% restocking fees.

To be eligible for a return, please make sure that the product was purchased in the last 60 days. The product isn't used or damaged. That you obtained a Return Merchandise Number (RMN) from us.

Even if your return and refund request does not meet the return policy requirements, please do not hesitate to contact us to submit an inquiry.

Submit a Returns Inquiry

Simple Installation

Clean water in less than 10 minutes.

Video

Clean water in less than 10 minutes.

We’ve made installation easy for a reason: so you’re in control of your water. Get more install tips.