The Senninger Mini-Wobbler Riser Adapter with Tube (SKU: MWRA / MPN: RSASM23C3) is the go-to mounting solution for growers and irrigators who rely on Mini-Wobbler Sprinklers in orchards, nurseries, vineyards, vegetable fields, and garden beds. Designed by Senninger — a Hunter Industries company — this compact riser adapter assembly eliminates the need for custom plumbing and gets your Mini-Wobbler up and running quickly with minimal tools.
The adapter stand features a 1/2" Female Pipe Thread (FPT) connection at the top, which threads directly onto the 1/2" Male Pipe Thread (MPT) base of any Mini-Wobbler sprinkler. The kit includes 3 feet of 0.270" I.D. polyethylene supply tubing along with a barbed adapter that inserts directly into your mainline poly tubing. Use the .400 Barb Punch to create the correct-sized hole in your mainline. If you ever need to remove or relocate a head, a .400 Barb Goof Plug will neatly seal the hole left behind.
The riser stand itself requires external support — it is designed to slip onto 5/16" rebar, 1/2" PVC, or 3/4" PVC pipe (not included), giving it a stable upright position at whatever height your crop or application demands. Per Senninger's published guidelines, a minimum recommended riser height of 1.5 ft (0.46 m) is required for proper Mini-Wobbler performance — so factor that in when selecting your support stake length. This assembly is compatible with both the MWLB (Mini-Wobbler with Ball Drive) and MWL (Mini-Wobbler Low Angle) models sold by DripWorks.
Ideal for portable or temporary irrigation systems, agricultural fields, greenhouse overhead watering, orchard under-tree irrigation, and row crop or nursery applications — this adapter makes it easy to reposition your sprinkler heads as your crop layout changes season to season. It's a low-cost, high-utility component that ties your entire Mini-Wobbler system together.
| Specification | Details |
|---|---|
| SKU | MWRA |
| MPN (Manufacturer Part #) | RSASM23C3 |
| Brand | Senninger (A Hunter Industries Company) |
| Top Connection | 1/2" FPT (Female Pipe Thread) |
| Compatible Sprinkler Connection | 1/2" MPT (Male Pipe Thread) — fits MWLB & MWL Mini-Wobblers |
| Included Supply Tube Length | 3 ft (0.9 m) |
| Supply Tube I.D. | 0.270" (Lower-flow tubing) |
| Barbed Adapter Included | Yes — inserts into mainline poly tubing |
| Required Punch Tool | .400 Barb Punch (sold separately) |
| Support Compatibility | 5/16" rebar, 1/2" PVC, or 3/4" PVC (support not included) |
| Min. Recommended Riser Height | 1.5 ft (0.46 m) above nozzle |
| Friction Loss (3 ft of 0.270" tubing) | 6.3 psi at 2.0 GPM (0.43 bar at 454 L/hr) |
| Application Types | Orchards, nurseries, vineyards, row crops, greenhouse, portable/temporary systems |
Which Mini-Wobbler models is this adapter compatible with?
This riser adapter is designed for use with the Senninger Mini-Wobbler sprinklers sold at DripWorks — specifically the MWLB (Ball Drive) and MWL (Low Angle) models. Both have a 1/2" MPT base that threads directly onto the 1/2" FPT top of this adapter stand.
What support do I need to hold the riser adapter upright?
The stand is not self-supporting. It is designed to slide over 5/16" rebar, 1/2" PVC pipe, or 3/4" PVC pipe (none of which are included). The support stake or pipe needs to be driven into the ground to a secure depth — a general best practice is to install it at least one-third of its total length into the ground for stability. Minimum recommended riser height above the ground is 1.5 ft (0.46 m) to ensure proper Mini-Wobbler stream performance.
What punch tool do I need for the barb installation?
You'll need the .400 Barb Punch to create the correct size hole in your mainline poly tubing for the included barbed adapter. Standard 1/4" or 17mm punches will not create the right sized opening for this barb. If you need to remove a barb and seal the hole, use the .400 Barb Goof Plug.
Can I use this adapter with any mainline tubing size?
Yes — the barbed adapter inserts into standard poly mainline tubing. The included 3 ft of supply tubing has a 0.270" I.D., which is Senninger's lower-flow tubing size. Note that friction loss through the complete assembly (3 ft of 0.270" I.D. tubing) is 6.3 psi at 2.0 GPM, so account for that pressure drop in your system design — particularly if running multiple heads in series or at the end of a long lateral.
Is this suitable for a temporary or portable irrigation system?
Absolutely. The Senninger Riser Adapter design is specifically noted as ideal for temporary and portable systems. Because the sprinkler connects to the lateral through flexible poly tubing rather than a rigid riser, the sprinkler head can be repositioned or relocated as needed — a major advantage for seasonal row crops, nurseries, or rotational field irrigation.
What is the friction loss I should account for in my system?
According to Senninger's published data, friction loss through the complete assembly — including 3 ft of 0.270" I.D. polyethylene tubing — is 6.3 psi at 2.0 GPM. Make sure your operating pressure at the lateral is sufficient to overcome this loss and still deliver the recommended pressure to the Mini-Wobbler nozzle (typically 15–30 PSI at the nozzle depending on the nozzle size selected).
Can I automate my Mini-Wobbler system with a timer?
Yes. Connect your mainline to a battery-operated or AC-powered timer and valve to automate watering cycles. DripWorks carries a full selection of irrigation timers and controllers as well as zone valves to make your Mini-Wobbler system fully automated.
Do I need a pressure regulator?
Mini-Wobbler sprinklers operate at low pressure — typically 15 to 30 PSI at the nozzle. If your water supply pressure is higher than this (common with municipal or well-fed systems), a pressure regulator upstream of your laterals is strongly recommended to keep the system within the Mini-Wobbler's optimal operating range and ensure uniform distribution.
Before you install, verify the following:
Pair this riser adapter with these essential components for a fully functional Mini-Wobbler irrigation setup:
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