Grow1 Insert Coupling Straight Connector - 17mm - 25 Count

Join Tubing Runs Without Replacing Them - 25 Couplings

A cut, a damaged section or a run that is too short can leave a water line unusable. An insert straight coupling joins two ends of 17mm tubing in a straight line, so you repair or extend the line instead of replacing it. The coupling pushes into the tubing at each end.

This unit holds 25 couplings. That suits a grower plumbing several runs in an indoor room, or a home gardener who wants spares on the shelf for future repairs.

Key Features & Benefits

• Straight insert design — joins two tubing ends in a line with no change of direction.
• 17mm size — matches 17mm tubing.
• 25 couplings per unit — covers multiple joins and leaves spares.
• Insert style — fits into the tubing, so you need no extra fittings for a basic join.

Who Should Use Grow1 Insert Coupling Straight Connector

Use it if you run 17mm tubing in hydroponic systems or irrigation lines and need to splice, repair or lengthen a run. It works for home setups and for larger cultivation rooms that need many joins.

About Grow1 Insert Coupling Straight Connector

Grow1 makes this insert straight coupling for 17mm tubing. It ships as a 25-piece set and is sold as one unit.

Frequently Asked Questions

Q: What tubing size does it fit?
A: It fits 17mm tubing. Check your tubing size before ordering, since other sizes will not seat correctly.

Q: How many couplings come in one unit?
A: One unit contains 25 couplings. You order one unit to receive all 25.

Q: What does an insert straight coupling do?
A: It connects two pieces of tubing end to end in a straight line. Each end of the coupling pushes into the tubing.

Q: Can I use it to change direction?
A: No. A straight coupling keeps the line straight. Use an elbow-style fitting where the tubing needs to turn.

Q: When is a coupling better than replacing the tubing?
A: A coupling is quicker when only one section is damaged or you need a little more length. Replace the whole run if the tubing is worn along its length.