GAC Media Cartridges

Features & Benefits

Blockfree Technology

What is BLOCKFREE Technology?

MediaCartridge Graphic

The world’s first patented filter that protects 
RO membranes & faucets!

An internal polypropylene post-filter is inserted into the filter cartridge to prevent carbon fines from escaping. This eliminates “carbon black” from the water while protecting the RO membrane and faucet from carbon fines, thus extending your RO membrane and faucet’s life!

Our BLOCKFREE technology incorporates bacteria-resistant PET pads instead of foam sponges to ensure drinking water stays pure and uncontaminated.

The cartridge bodies are designed to withstand high pressures. This reduces the risk of damage and/or rupture from water hammer.


Part Number Media Type Size Cap Color Body Color Iodine Rating
Standard Media Cartridges
M11-GT-WC BLOCKFREE 9 ⁷⁄₈" White Clear 1000
M01-GT-BW GAC 9 ⁷⁄₈" Blue White 1000
M12-GT-WC BLOCKFREE 9 ³⁄₄" White Clear 1000
M02-GT-BW GAC 9 ³⁄₄" Blue White 1000
Acid Washed Media Cartridges
M11-AC-WC BLOCKFREE 9 ⁷⁄₈" White Clear 1100
M01-AC-BW Acid Washed GAC 9 ⁷⁄₈" Blue Clear 1100

Product Certifications