Fits these pumps
Waterco Hydrostorm & Hydrostorm Plus (75–400) · Supatuf (75–250) · Aquamite (50–125) · Supastream · Portapac & Portapac Elite · Aquastream · Hydrostar · Delta · Superflo — also fits the Espa Flipper. Replaces Waterco part 6340162.
What you get
The complete mechanical seal — spring-loaded rotating half plus the stationary seat — ready to fit. Stainless hardware and carbon/ceramic faces rated for continuous pool duty.
How you know it’s this part
A failed shaft seal shows up as a steady drip (or a fine spray) from the gap between the pump body and the motor, often with rust streaks or scale on the bench underneath. If your model is on the list above, this seal fits. Not sure? Send us a photo of the pump plate — we’ll confirm before you order.
Fitting
A 20–30 minute DIY job on most Waterco pumps: isolate and unbolt the wet end, swap both seal halves, reassemble. Step-by-step in our install guides. Replace the body o-ring while you’re in there — it’s the other part that’s been working as hard as the seal.
Quality aftermarket part. Not a genuine Waterco or Espa product; brand and model names are used for compatibility reference only and remain trademarks of their owners.