The T15 is Wilden’s 3 inch Turbo-Flo pump. Wilden lists 52 builds: 31 in aluminum and 21 in cast iron. It is not the largest Turbo-Flo pump; that is the 4 inch T20.
T15 specifications
For aluminum build 15-10001 (Buna-N diaphragms):
- Ports: 3 inch (76 mm)
- Maximum flow: 232 gpm (878 L/min)
- Maximum air pressure: 120 psi (8.3 bar)
- Dry suction lift: 18 ft (5.5 m)
- Temperature: 10 to 180 °F (-12 to 82 °C) for this build
- Shipping weight: about 116 lb (53 kg)
The cast iron T15 (15-10269) has the same flow and lift and ships at about 200 lb (91 kg).
Bigger or newer
- T20, 4 inch Turbo-Flo in cast iron: 274 gpm (1037 L/min)
- XPS1520 / XPS1530, 3 inch Pro-Flo SHIFT: 271 gpm (1026 L/min)
If you are replacing a T15, keeping the same model avoids changes to the pipework. If the pump is undersized, one of the larger pumps above may be the better step.