Description
Overview
This Rule 25mm Hose Barb Straight (Part Number RWB5184) is a genuine replacement outlet fitting for Rule and Rule-Mate bilge pumps that use a straight port. It suits 25 mm (1 inch) bilge hose and allows a secure, low-restriction discharge connection. Because it is a direct spare, installation is straightforward and compatibility is dependable.
For background on Rule pump fittings and hose sizing, see the official Rule technical quick reference from Xylem.
Features
- Straight 25 mm hose barb for efficient flow with minimal bends
- Genuine Rule spare part for a reliable fit with matching pumps
- Durable marine-grade plastic body suitable for bilge discharge duties
- Simple, tool-light installation using standard hose clamp
Specifications and Materials
| Manufacturer | Rule (Xylem) |
| Part Number (ID) | RWB5184 |
| Connection | Straight hose barb |
| Hose Size | 25 mm (1″) nominal bilge hose |
| Body Material | Marine-grade plastic (non-metallic) |
Dimensions may vary slightly by pump family. Always confirm your pump’s outlet size before ordering.
Compatibility and Fitment
The Rule 25mm Hose Barb suits Rule and Rule-Mate bilge pumps requiring a straight 25 mm outlet. It replaces a worn or damaged barb on compatible pumps that discharge through 25 mm hose. Fit the hose fully over the barb, then secure it with a stainless hose clamp. Consequently, leaks are reduced and flow is maintained.
Compliance and Safety
Use only with flexible bilge hose rated for below-waterline applications. Tighten hose clamps evenly and re-check after the first outing. Disconnect power to the bilge pump before servicing fittings.
Marine Applications
This Rule 25mm Hose Barb is ideal for bilge pump discharge lines on trailer boats, cruisers and light commercial craft. Because the fitting is straight, routing remains simple when the pump outlet aligns with the hose run.
Why Choose Argomarine
We source genuine marine spares and present them with clear, practical details. Therefore you can match parts quickly, reduce downtime and keep your vessel dry. Need other bilge plumbing hardware? Browse our curated range of hose, clamps and pump accessories in
