3/4" (19.05 mm) Pump Mechanical Seal: AstralPool CTX
Seals with the same shaft size come in different shapes and are not interchangeable. Compare the photo with your old seal before ordering.

PSL-120 Mechanical Seal
- 3/4" (19.05 mm) shaft
- Carbon / Ceramic
- Suits pumps using Astral 75508, Onga 700270
Fits: AstralPool CTX, AstralPool CX, Filtermaster SB20 Mechanical Seal, Filtermaster SB30 Mechanical Seal, Onga Leisuretime LTP, Onga Pantera PPP
$34.95 Ordered in
PSL-150 Mechanical Seal
- 3/4" (19.05 mm) shaft
- Carbon / Ceramic
- Ø40 × 35 mm (10.3 mm seat)
$57.95 Ordered in
Other shaft sizes and how to measure a shaft: all mechanical seals. Not sure? Send us a photo of the old seal and the pump label.