PVC Sight Glass
See what you are sending out to the sewer system and save money on your water bill. Easy to install.
A must have for your pond. Excellent for viewing Water Quality during Back wash of your system. Also a great tool for viewing and monitoring water quality as it re-enters your pond from the filter system. These Sight Glasses are 12 inches long, available in 1.5 and 2 inch sizes, slipxslip unions on both ends. The sight glass can be used in line wherever you use regular PVC.
One of those unique hard to find specialty pond items.