Joins two pieces of Sumi Soaker tubing into one run, or repairs a line that's been cut or damaged. Keep the joined run at or under 330 ft.
- Join or repair. A tube-to-tube connector with no threads. Joins two pieces of tubing into one run, or patches a line that's been cut or damaged.
- No tools needed. Installs by hand.
- Matched to your tubing. Comes in R-Wide and Mark II versions. Pick the one that matches your tubing; they don't cross over.
What's included
One Sumi Soaker Tube Coupling in the version you pick. Couplings aren't included in Sumi Kits or Bed Add-On Kits.
Free shipping on orders over $25 in the Lower 48 · Most orders ship within 24 hours
Other Sumi parts
-
R-Wide Tubing
Tubing only, by length or the full 328 ft roll.
From $43.00Choose -
Mark II Tubing
Tubing only, by length or the full 328 ft roll.
From $43.00Choose -
End Stopper
Closes the far end of the run.
From $4.50Choose -
Bed Add-On Kit
All the fittings for one more run.
From $14.50Choose
Specs at a glance
- Fits
- R-Wide or Mark II tubing (pick the matching version)
- Type
- Tube-to-tube connector, no threads. Joins two pieces of tubing or repairs a cut line.
- Install
- By hand, no tools
- Max joined run
- 330 ft (100 m)
- Included with kits
- No, sold separately
Questions growers ask
Still not sure? Email hello@moderngrower.co or call 877-850-1555.
When would I use a coupling?
To join two pieces of tubing into one longer run, for example two 50 ft pieces into a 100 ft bed, or to repair a line that's been cut or damaged. Cut out the damaged section and couple the two ends back together.
How long can a joined run be?
Keep the total at or under 330 ft. Longer runs lose pressure toward the far end, which narrows the spray. Remember that a longer run also needs more water: about 0.13 GPM per foot for R-Wide and 0.036 GPM per foot for Mark II.
R-Wide or Mark II version?
Match it to your tubing. The two versions are sized for their own tubing and don't cross over. Not sure which tubing you have? Email us your order number and we'll tell you.
Can I join R-Wide to Mark II?
No. The tubes are different sizes and run at different pressures (30 PSI for R-Wide, about 12 PSI for Mark II), so they can't share a line.
Is a coupling included in the kits?
No. Sumi Kits and Bed Add-On Kits include the starter connector, threaded connector, filter and end stopper. Couplings are sold separately.
Main US source
Modern Grower is the main US source for Sumi Soaker (Sumisansui) tubing from Sumika Agritech.
Support from people who use it
Questions go to our team, with a direct line to the manufacturer. hello@moderngrower.co · 877-850-1555
Ships from the US
In stock, with most orders out within 24 hours. Free shipping over $25 in the Lower 48.
About the Sumi Soaker Tube Coupling
The Sumi Soaker Tube Coupling joins two pieces of Sumi Soaker (Sumisansui) overhead irrigation tubing into one continuous run. Use it to build a longer line from shorter pieces, or to repair a section of tubing that's been cut or damaged. It installs by hand with no tools.
Keeping joined runs within spec
Keep the total run at or under 330 ft. Past that, pressure drops toward the far end and the spray narrows. A longer run also draws more water, about 0.13 GPM per foot for R-Wide at 30 PSI and 0.036 GPM per foot for Mark II, so check that your supply can keep up.
R-Wide and Mark II versions
The coupling comes in two versions sized for each tubing. They aren't interchangeable, and R-Wide and Mark II tubing can't be joined to each other.