Astralpool Lid O-Ring - CTX, E Series, Viron XT

Astralpool Lid O-Ring - CTX, E-Series, Viron XT 70006

This is the genuine Astralpool pump lid o-ring, part number 70006 — the o-ring only, that seals the clear lid to the pump body. It is the single most common cause of a pump that will not prime or hold prime: a perished, flattened or dry lid o-ring lets air into the suction side. Marked yellow in the parts diagrams; originally supplied grey or black. Genuine OEM, not cheap generic.

• Physically Stocked, unlike most "drop-shipping" websites.
• Shipped from VIC, NSW, WA, QLD

O-Ring Only — or the Whole Lid?

This listing is the o-ring on its own. If your clear lid is cracked, crazed or no longer sealing at the rim, you need the complete lid instead:

• Just the seal has perished — this part, 70006.
• The clear lid itself is cracked or cloudy — the complete lid assembly (SP40089), which includes the clear top, locking ring and o-ring.

Fits These Pumps

• Hurlcon & Astralpool CX: CX 180, CX 240, CX 280, CX 320
• Hurlcon & Astralpool TX: TX 1.0, TX 1.5, TX 2.0
• Astralpool CTX: CTX 180, 280, 360, 400, 500
• Astralpool E-Series: E 140, E 170, E 230
• Astralpool Viron XT: P320 XT, P520 XT
• Also suits Aquatight pumps with the same lid

Maintenance Tip

Astralpool's own maintenance schedule calls for the lid o-ring to be checked every three months, cleaned and greased, and replaced if damaged. Clean the o-ring seat before refitting — debris on the seat leaks air just as a bad o-ring does. Do not overtighten the lid; it is designed to be hand-tight only.

Related Parts

• SP40089 — complete lid assembly with clear top, locking ring and o-ring (buy here)
• 40065 — basket (buy here)
• 75508 / PS3868 — mechanical seal (buy here)
• Impeller — sized to your model, see the CTX impeller range

Manufacturer Catalogues, Diagrams & Part Numbers

Need exploded views, spare part numbers, product numbers or diagrams? See the manufacturer catalogues: Astralpool Catalogue 2026 | Zodiac Catalogue 2026

Common search terms: Astralpool 70006, CTX lid o-ring, Viron XT lid o-ring, pump lid seal, Astral Hurlcon lid o-ring, pump not priming air leak.