We are excited to offer a better sight glass for our throttle valve that solves many problems created by sight glasses currently on the market. Our new sight glass not only works better than other sight glasses, but it also provides a better view of the back flush water. Our sight glass is made from Stainless Steel and UV protected clear PVC, making it resistant to discoloring and contamination from sunlight.

*Sight Tube Assemblies come with a #304 Stainless Steel Street 90 and Sight Tube with cap.

*Replacement Sight Tube is the glass only.