SWR drainage / ring fitRing-fit
Ring-fit
couplers.
Compare Flowin ring-fit coupler sizes in 75 mm and 110 mm, including catalogue box packing and per-piece rates.
Catalogue section: SWR FITTING (RING FIT). These tables cover only the ring-fit coupler shown here.

Catalogue detailsSizes, box packing
Sizes, box packing
and rates.
Compare sizes, packing and rates for each fitting.
01 / RING-FIT FITTING
Coupler
Sizes, box packing and rate per piece as listed in the 2026 catalogue.
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| Size (inch) | Size (mm) | Packing in box | Rate / pc. |
|---|---|---|---|
| 2 1/2″ | 75 | 175 | 30.20 |
| 4″ | 110 | 72 | 56.30 |
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