3/4" ID Tubing Adapter
The Atlantic Water Gardens fountain pump 525 3/4-inch inner diameter tubing adapter is the largest available outlet adapter for the Oase 525 Fountain Pump, connecting the pump's outlet port to 3/4-inch ID flexible tubing or pipe. The larger bore of the 3/4-inch adapter reduces flow velocity and head loss at the pump outlet compared to the smaller 1/2-inch or 5/8-inch adapters — making it the preferred choice for multi-outlet configurations, longer pipe runs, or installations where minimising pump back-pressure is a priority.
When to Use the 3/4" Adapter
At 3/4-inch ID, this adapter is best matched to installations using the Eco-Rise triple plumbing kit, multi-sphere distribution manifolds, or runs exceeding 6 feet (1.83 m) from the pump to the display element. For single-outlet short-run installations, the 1/2-inch adapter is typically sufficient and allows more compact routing through tight basin spaces.
Installation
Press or twist onto the 525 pump outlet port and secure with a hose clamp. Ensure the tubing ID matches the adapter's 3/4-inch outer connection geometry for a watertight fit.
| Compatible Pump | Oase 525 Fountain Pump |
|---|---|
| Tubing ID | 3/4 inch (19 mm) |
| Best For | Multi-outlet, long runs, minimising back-pressure |
| Other Available Sizes | 1/2" ID and 5/8" ID adapters (sold separately) |
- Largest bore adapter for the Oase 525 pump — reduces back-pressure on long runs
- Preferred for multi-outlet manifold and Eco-Rise triple kit installations
- Connects pump to 3/4" ID tubing without leaks or fitting stress
- Three adapter sizes available: 1/2", 5/8", 3/4" ID

