Rubber Grommet for Irrigation Takeoffs, 16鈥?5 mm

A rubber grommet provides the sealing interface between a prepared irrigation header opening and a compatible takeoff fitting. Its flanged form sits around the opening, while the central passage receives the matching fitting stem. Use it when building or repairing a header-to-branch connection that is designed to use this type of insert.

Choose the matching connection size

The listed options are 16, 20 and 25 mm. Treat these as connection choices and confirm them against the takeoff fitting鈥檚 requirements. The nominal size does not by itself establish the drilled-hole diameter, the grommet鈥檚 outside diameter or compatibility with every pipe wall thickness. Compare the mating stem, opening and seating shape before ordering, particularly when replacing a seal from an existing installation.

Inspect the seating surfaces

Turn off the supply and depressurize the line before removing a fitting or preparing a new outlet. The pipe opening should be clean and free of loose cuttings or sharp edges that could damage the insert. Inspect the grommet for cuts or distortion, seat its flange evenly and insert only a compatible fitting. Avoid forcing an oversized stem through the central passage.

Check the completed takeoff

Support the branch tubing so movement does not pull the fitting sideways. Restore water gradually and inspect the connection during normal operation. If the joint leaks, turn the water off before checking the hole, insert and fitting combination. Repeated leakage may indicate a damaged seating surface or mismatched parts rather than a need to push the fitting harder.

The selected item is the rubber grommet. Header pipe, takeoff connector, valve and branch tubing are separate components. The black and pale inserts in the photograph illustrate the product form; select the listed size required for your connection.