Delta, Plastic, Tub/Shower Faucet Cartridge, 1300/1400 Pressure Balance, 1 Per Bag, OEM Reference #RP19804. Plastic.1300/1400 pressure balance, 1 per bag. OEM reference #rp19804.PlasticTub/shower faucet cartridge1300/1400 pressure balanceOEM reference #rp19804. ...