Description Description The Haskel 57340 is a seal kit for the Haskel AD-4B air-driven liquid pump. The seal kit contains UHMWPE (ultra-high molecular weight polyethylene) seals that are compatible with most liquids and liquefied gases. The seal kit is designed to provide reliable and safe operation of the pump, which can deliver up to 2700 PSIG of outlet pressure with a 100 PSIG air supply. The Haskel 57340 seal kit is easy to install and maintain. State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Literature & Docs Accessories