Technical Description: The Dometic/Sealand Duck Bill Valves Kit comes with two 1-1/2 duckbill valves for “T” and “S” series pumps. The “T” series discharge pump requires 1 kit (2 valves) 4Pcs/Set Duckbill Valve Kit Replace For Dometic 385310076 Compatible... Wide Application: For Dometic S, T, VHT, and VG series pump numbers including S12D, S12DAB, S24D, S32D, S115A, S12, 52A, S32, T12, T24, T32 model. Features: Simple to use, impossible to mess up, and well built. 385310076 1-1/2'' Duckbill Valve Kit & 385230980 Pump Bellow Kit & 385310151 O-Ring Kit For Dometic S, T, J, VHT, and VG Series Spectra Duckbill Valve 4 Pack DB Valve 1-1/2" Black Duckbill Valve Kit Replace Fit For Dometic Duck Bill Valves This is a high-quality tool and you will be pleased with your purchase Button Cell Batteries (L736 & LR626) - 30 Count (10 x 3-Pack ) 4.5V for Laser Boresighter, Training Cartridge, Toys, LED Flashlight - AG3/LR41/L626F/377/392/384/CX66W Replacement Note that “S” series vacuum pumps, low profile vacuum pumps, and the VG2 vacuum pumps require 4 valves .