Franklin FWGC10B 10-Inch Big Blue GAC Filter Cartridge

Reduce Chlorine, Unpleasant Tastes and Odours With a 4.5 × 10-inch GAC Cartridge Rated for 12,500 Gallons at 2 GPM

The Franklin FWGC10B is a 10-inch Big Blue GAC filter cartridge with a nominal 4.5-inch diameter. Its granular activated carbon media helps reduce chlorine, tannin, colour, and objectionable tastes and odours. It fits most compatible 10-inch Big Blue-style filter housings and has a rated flow of 2 GPM (7.6 L/min).

Franklin lists a chlorine, taste and odour reduction capacity of 12,500 gallons (47,000 litres) at 2 GPM. This estimate is based on the manufacturer's internal testing with 2 ppm free available chlorine at continuous flow and greater than 75% reduction. Actual cartridge life depends on the incoming water, flow rate, water use and treatment target.

Key Features and Benefits of Franklin FWGC10B

• Granular activated carbon media: Helps reduce chlorine, tannin, colour, tastes, odours and organic contaminants, so you can get cleaner-tasting, better-smelling water.
• Full-bed flow path: Water travels through the complete carbon bed, so you can support consistent chlorine, taste and odour reduction.
• Internal expansion pad: Helps limit channeling and bypass, so you can keep more water moving through the intended carbon treatment path.
• 12,500-gallon rated chlorine capacity at 2 GPM: Gives you a documented performance figure, so you can plan cartridge service using your water use and treatment conditions.
• 4.5 x 10-inch Big Blue format: Fits most compatible standard housings, so you can replace the cartridge without changing a correctly matched housing or assembly.
• Flexible system placement: Works as reverse osmosis pretreatment, post-treatment or stand-alone point-of-use filtration, so you can place it where carbon treatment is needed.
• NSF/ANSI 42 material certification: The cartridge is certified for material requirements, so you can choose a product evaluated to an independent drinking-water material standard.

How the FWGC10B GAC Filter Cartridge Works

Water enters one end of the cartridge and travels through the full length of the granular activated carbon bed before leaving the other end. An internal expansion pad helps limit channeling and bypass, which keeps more water in contact with the carbon media.

Franklin states that FWGC Series carbon cartridges significantly reduce:

• Chlorine and chlorine by-products, including trihalomethanes (THMs)
• Objectionable tastes and odours
• Organics, colour and tannin
• Turbidity that can make water appear cloudy
• Herbicides, pesticides and insecticides
• Volatile organic chemicals (VOCs)

Reduction performance depends on contact time, flow, contaminant concentration and water chemistry. Select the cartridge from a current water analysis when treating a specific contaminant.

FWGC10B Size, Flow and Technical Specifications

Housing Compatibility and Applications

The FWGC10B is a replacement Big Blue carbon filter cartridge for most standard housings designed for nominal 4.5 x 10-inch cartridges. Before ordering, confirm the housing length, bowl diameter, sealing surface and required system flow. Compatibility should not be assumed from the Big Blue name alone.

Franklin lists the FWGC Series for:

• Potable and process water treatment
• Residential and commercial reverse osmosis pretreatment or post-treatment
• Stand-alone point-of-use drinking water treatment
• Food and beverage water treatment
• Replacement use in compatible existing systems and assemblies

The cartridge is rated at 2 GPM. Confirm that this flow meets the demand of the planned application, especially when the housing serves more than one fixture.

Installation and Flushing Notes

• Shut off the water and fully depressurize the housing before opening it.
• Follow the filter housing instructions for cartridge installation and sealing.
• Flush the new cartridge according to the housing instructions to remove the small amount of carbon fines it may contain.
• If a drinking-water tap is not used daily, Franklin recommends flushing it for at least 20 seconds before drinking or cooking.
• Replace the cartridge when its treatment capacity is reached or when water quality declines under the system's service plan.

Order the Franklin FWGC10B from Cleanflow

Order one FWGC10B cartridge or a case of 12 from Cleanflow. Browse more Big Blue water filters and cartridges, view the compatible Franklin FWHL Big Blue filter housing, or shop for other Franklin Water Treatment products.

Need help confirming fit? Contact Cleanflow with your housing model, current cartridge dimensions, water source, required flow and treatment goal. Email info@cleanflow.ca for returns or exchanges within 30 days.

Frequently Asked Questions

What size housing fits the Franklin FWGC10B?

The FWGC10B fits most housings made for nominal 4.5 x 10-inch Big Blue-style cartridges. Confirm the cartridge size and housing specifications before ordering.

What does the FWGC10B GAC cartridge reduce?

Franklin lists chlorine, THMs, tastes, odours, tannin, colour, turbidity, herbicides, pesticides, insecticides and VOCs. Results depend on water chemistry, contaminant levels, flow and contact time.

What is the rated chlorine capacity of the FWGC10B?

Franklin rates the cartridge for 12,500 gallons at 2 GPM. The estimate is based on internal testing with 2 ppm free available chlorine at continuous flow and greater than 75% reduction.

Is the FWGC10B the same as a carbon block cartridge?

No. The FWGC10B contains granular activated carbon. A carbon block cartridge uses compressed carbon. Confirm the media type, size, flow and treatment purpose before selecting a replacement.