Hydro Flow Barbed Elbow 3/4 in (Single) | 90 Degree Irrigation Fitting

Hydro Flow Barbed Elbow 3/4 in for Main Lines

Larger lines carry the bulk of the water in a grow room, and a kink in one of them slows every zone it feeds. This Hydro Flow fitting, Hawthorne part number HGC708450, turns a 3/4 inch line through a clean 90 degree bend. It is an elbow with a barbed end on each leg. Several barbs on each leg bite into the tubing wall for a tight fit. A raised collar behind the barbs acts as a bump stop. When the tubing reaches that collar, the leg is fully inserted. The 3/4 inch size suits main feed lines, pump outlets and reservoir returns, where 1/2 inch line would be too small. Growers use these elbows to drop a header down from a bench, wrap around a tank or run lines along walls. The body is molded in black plastic. Matching straight couplers, tees and a ball valve come from the same Hydro Flow barbed line. Each listing here is a single fitting.

Plumbing With a 3/4 Inch Barbed Elbow

Sketch the run first, and mark every point where the line needs to turn. Cut the tubing square with a sharp tubing cutter or a fine-tooth saw for heavier walls. A clean, square cut seals better than a ragged or angled one. Push the tubing over one leg until it meets the collar, then fit the second leg. Heavier tubing slides on more easily after a minute or two in warm water. Avoid oils or soap as a lubricant, because they can let the tubing creep off later. Pump discharge lines carry real pressure, so add a hose clamp over each joint there. Gravity returns usually hold fine on the barbs alone. Support full lines near each elbow, since water in larger tubing is heavy. Check every joint for drips during the first run. Keep a couple of spares on hand, because a cracked elbow on a main line stops every zone behind it.

Key Features

• 90 Degree Turn: Routes 3/4 inch tubing around corners without kinking the line.
• Barbed Legs: Multiple barbs on each leg grip the tubing for a tight fit.
• Bump Stop Collar: A raised collar shows when each leg is fully inserted.
• Main Line Size: Fits the larger feed, pump and return lines in a grow room.
• Single Fitting: One elbow for a quick repair or a small build.

Technical Specifications