Description
Waterway SD-07-1N HI-Flo II 3/4 THP Top Discharge Pump for Above Ground Pool
The Waterway SD‑07‑1N is a 3/4 THP, top‑discharge, Hi‑Flo II above‑ground pool pump designed for small to medium above‑ground pools. It’s known for strong flow, quiet operation, and easy serviceability.
Specifications
Model: SD‑07‑1N
Series: Hi‑Flo II (Above‑Ground)
Horsepower: 3/4 THP (Total Horsepower)
Discharge Orientation: Top discharge
Voltage: Typically 115V (most AG pumps)
Pump Type: Single‑speed
Motor Frame: 48Y (common for AG pumps)
Features:
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Large strainer basket
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Clear lid for easy debris inspection
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High‑flow wet end for above‑ground pools
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Corrosion‑resistant construction
Compatibility
This pump is commonly used on:
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Above‑ground pools up to 18'–24' round
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Cartridge or sand filter systems
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Systems requiring top‑discharge plumbing
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Replacements for older Waterway Hi‑Flo or Hi‑Flo II pumps
If you tell me your filter model or existing pump label, I can confirm compatibility.
Replacement Notes
If you’re replacing an existing Hi‑Flo II pump:
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The wet end and unions are usually compatible across HP sizes
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The SD‑07‑1N may be replaced by newer Waterway models such as:
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SD‑10‑1N (1.0 THP)
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SD‑05‑1N (0.5 THP)
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Waterway often re‑labels pumps for pool brands, so your pump may have a different sticker but the same internals
Installation Notes
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Top‑discharge pumps are ideal when plumbing rises directly into the filter
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Always replace the pump‑to‑filter o‑ring when swapping pumps
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Check amperage compatibility with your existing circuit
