Most Glacier Bay single handle kitchen and bathroom faucets use a 35 mm ceramic cartridge under a bonnet nut. The Market pull-down and Touchless use RP20044; a long list of others use the cartridge Home Depot sells as SKU 864680; the Aragon uses 864850. If your model is not on a fit list, pull the cartridge, measure its diameter, and match it to a Danco or Kerox generic.
Before you start. Shut off the two small valves under the sink by turning them clockwise, then open the faucet to confirm the water has stopped. Plug the drain so small parts cannot fall in. You will need a screwdriver, an adjustable wrench or pliers, and for most handles a hex key (an Allen wrench, sold as an inexpensive set at any hardware store). If a shutoff valve will not turn or starts to drip, or anything is corroded and will not loosen with moderate force, stop and see when to call a plumber. New to this? Start here explains the parts and tools in plain language.
Not sure this is your faucet? See how to identify your Glacier Bay cartridge without a model number, or how to find your brand and model.
Steps (Market and Touchless pattern)
- Shut off both supply stops and open the faucet.
- Find the set screw (RP50002). On the Market it is a metric hex under a plastic cap on the back of the handle. Back it out and lift the handle.
- Unscrew the decorative cap (RP80503) and then the bonnet nut (RP70528), both counterclockwise.
- Note which way the cartridge sits, then lift it out.
- Clean the body. If the complaint was a stiff handle rather than a drip, soaking the cartridge in a lime remover sometimes brings it back; Glacier Bay’s support suggests that before replacement.
- Set the new cartridge on its locating pins, refit the bonnet nut and cap, and the handle.
- Remove the aerator and flush before testing.
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