Description Description The Haskel 50881-2 air valve seal kit is a replacement part for the control valve of the Haskel 8HP series of air-driven liquid pumps. The seal kit contains high-quality seals that ensure optimal performance and durability of the pump. The seal kit is compatible with the 50899-2 cycling valve that was installed on models manufactured after September 2001. The seal kit is easy to install and comes with detailed instructions. The Haskel 50881-2 air valve seal kit is a must-have for maintaining your Haskel 8HP liquid pump in excellent condition. Seal Kit Item Components 50008: 2 qty 568012-2: 1 qty 568030-2: 6 qty 568216-21: 1 qty 568906-9: 1 qty 16510: 1 qty 53968: 1 qty 50866: 1 qty 58205-21: 1 qty 568218-21: 1 qty State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Literature & Docs Accessories