Autoplumb Conversion Adaptors are re-usable. We recommend you replace the seal when re-using an Adaptor that has been in service for an extended period of time. Shims are also available in the event of loss or damage. Note: Assembly tape strips are supplied with Seals & Shims How to Order: Water Neck OD. Order # Seals 1.250"-1.274" AP1250-SEAL 1.275"-1.299" AP1275-SEAL 1.300"-1.324" AP1300-SEAL 1.325"-1.350" AP1325-SEAL 1.500"-1.524" AP1500-SEAL 1.525"-1.550" AP1525-SEAL 1.750"-1.774" AP1750-SEAL 1.775"-1.800" AP1775-SEAL 1.990" -2.015" AP1990-SEAL 2.016" -2.040" AP2015-SEAL Shims 1.250"-1.299" AP1250-SHIM 1.300"-1.350" AP1300-SHIM 1.500"-1.550" AP1500-SHIM 1.750"-1.800" AP1750-SHIM 1.990" - 2.015" AP1990-SHIM Note: Seals and Shims are sold separately.