Description
This complete Waterway Executive 4 HP wet end assembly for 48 Frame motors includes all essential components: volute, impeller, seal plate, wear ring, and mounting hardware. Designed for 2 1/2" intake x 2" discharge configuration. This premium replacement pump end delivers reliable performance for spa circulation systems.
Frame Identification: The 48 Frame design features motor through-bolt spacing of 3 5/8" center-to-center, or 5 3/16" measured in an X pattern. Compare this to 56 Frame versions which measure 4 1/8" between bolts or 5 3/4" diagonally.
Critical Measurement Notice: The suction port on this executive series wet end measures approximately 3 5/8" edge to edge, larger than standard 2" union fittings which measure about 3". Verify your existing wet end has this oversized suction fitting before purchasing.
Power Specifications: This wet end pairs with motors drawing approximately 14.0 Amps at 230V. No 4HP spa pumps operate at 115V.
Determining Correct Horsepower: Always reference the amperage rating on your motor label rather than the HP designation. For dual-speed motors, you'll see two values like 10.0/3.5 - use the higher number. Here's the accurate amperage-to-HP conversion: 8.0A = 1HP | 10.0A = 2HP | 12.0A = 3HP | 14.0A = 4HP | 16.0A = 5HP
Why Amperage Matters: Manufacturers often exaggerate horsepower ratings. Amperage provides the true power draw. Consider this: if you actually had two 5HP pumps (16A each = 32A total) plus a 5.5KW heater (21A), the combined load would be 53 amps - exceeding most spa's 50 amp breaker capacity. Trust the amperage numbers on your motor nameplate for accurate identification.
Global stocks the complete Waterway Executive 48 Frame wet end series in 1HP, 2HP, 3HP, and 4HP configurations, all available in this 2 1/2" x 2" port sizing.
