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When your plumbing or irrigation layout calls for connecting two pipes of different diameters, mismatched fittings cause leaks, pressure loss, and frustrating rework. These PVC eccentric reducing bushing fittings are designed for homeowners, DIY plumbers, and garden irrigation builders who need a clean, secure pipe size transition without cutting corners.
Each bushing is molded from Polyvinyl Chloride (PVC), offering a lightweight yet rigid body that resists corrosion, UV degradation, and common household chemicals. Available in 10 size combinations ranging from 25×20mm (~1"×¾") up to 75×63mm (~3"×2½"), with wall thickness and socket depth proportional to pipe diameter. The eccentric offset design keeps the pipe bottom flush — ideal for drainage runs where gravity flow matters.
Typical use cases include residential cold-water supply line reductions, garden drip irrigation manifold connections, and workshop compressed-air PVC pipe networks. Long-tail search terms: PVC reducing socket bushing for irrigation, eccentric pipe reducer fitting blue, PVC pipe size adapter connector joint.
Keeps the pipe invert (bottom) level for gravity-fed drainage and irrigation runs, preventing air pockets and flow restrictions.
Molded from Polyvinyl Chloride — immune to rust, mineral buildup, and common garden chemicals, ensuring long service life outdoors and underground.
Choose from 25×20mm up to 75×63mm to match your existing pipe layout without sourcing from multiple suppliers.
PVC construction keeps each bushing light enough for single-person installation — no heavy tools or lifting equipment needed.
Both spigot and socket ends accept standard PVC solvent cement for a permanent, leak-free bond.
Order 1 to 20 pieces per pack — buy a single unit to test fit or stock up in bulk for a full project.
| Material | Polyvinyl Chloride (PVC) |
|---|---|
| Color | Blue |
| Fitting Type | Eccentric Reducing Bushing |
| Connection Method | Solvent-weld socket (spigot x socket) |
| Available Sizes (mm) | 25x20, 32x20, 32x25, 40x20, 40x25, 50x20, 50x25, 50x40, 63x50, 75x63 |
| Size Range (approx. inch) | 3/4 x 1/2 inch up to 3 x 2-1/2 inch |
| Wall Thickness | See variant options |
| Pressure Rating | See variant options |
| Temperature Range | 0 to 60 degrees C (32 to 140 degrees F) |
| Packing Quantity | 1 / 2 / 3 / 4 / 5 / 8 / 10 / 15 / 20 Pcs |
| Application | Cold-water plumbing, garden irrigation, low-pressure air lines |
Match the larger number to your main pipe outer diameter (OD) and the smaller number to the branch pipe OD. For example, a 40x25mm bushing connects a 40mm main pipe down to a 25mm branch. If unsure of your pipe OD, measure the outside circumference and divide by 3.14.
A concentric bushing keeps both pipe centerlines aligned, good for vertical runs. An eccentric bushing offsets the centerlines so the pipe bottoms stay level, ideal for horizontal drainage and irrigation lines to avoid air traps.
No. These PVC bushings are rated for cold-water supply, garden irrigation, and low-pressure air up to approximately 60 degrees C (140 degrees F). For hot water, CPVC or copper fittings are recommended.
Yes. The socket and spigot dimensions fit standard Schedule 40 PVC pipe OD in the corresponding metric sizes. Always dry-fit before applying solvent cement to confirm the fit is snug.
When properly primed and cemented with compatible PVC solvent cement, the joint typically exceeds the burst strength of the pipe itself. Allow at least 15 minutes before handling and 24 hours before pressurizing.
PVC has moderate UV resistance. For above-ground installations with prolonged direct sunlight, wrapping with UV-protective tape or applying UV-blocking paint is recommended to prevent surface chalking.
For a standard home garden drip irrigation manifold with 4 to 6 zone reductions, ordering 5 to 10 pieces is a practical starting point. Multi-pack options (8, 10, 15, 20 Pcs) offer a lower per-unit cost.
