Davey CrystalClear 21"/25", EcoPure 21"/25" 40mm MPV Spider Gasket M8120 – Genuine Sand Filter Spare Part
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Same Day Dispatch
On orders placed by 12pm AEDT
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Flat rate shipping
Per order Australia-wide
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The M8120 Spider Gasket provides a watertight seal inside the 40mm multiport valve (MPV) used on select Davey, Zodiac, Emaux, and Reliance sand and glass media filters. This genuine replacement part prevents internal bypass and cross-leakage between filter settings, maintaining optimal performance during filtration, backwash, and rinse cycles.
Compatible with:
- Davey CrystalClear 21" / 25" (40mm MPV)
- Davey Monarch EcoPure 21" / 25" (40mm MPV)
- Zodiac Titan Series (40mm MPV)
- Emaux V Series (40mm MPV)
- Reliance MKIII (40mm MPV)
Dimensions:
- Overall Outside Diameter: approx. 132 mm
- Centre Hole Inside Diameter: approx. 17 mm
- Wall Thickness: approx. 7 mm
See part 11 in the diagram below.

| SKU | M8120 |
|---|---|
| Barcode | M8120 |
| Package Length | 15 cm |
| Package Width | 15 cm |
| Package Height | 1 cm |
| Warranty | 1 Year |
| Brand | Davey |
| Model | 40mm MPV Spider Gasket |
| Product Type | Filter Spare Part |
| Shipping Type | Standard |
Shipping
Same-day dispatch applies to orders received by 12.00 pm (AEST) during business days. Orders received after 12.00 pm and on weekends or public holidays will be dispatched on the next business day.
Delivery fees are $19.95 flat-rate per order Australia-wide, no matter how many products are in it. Orders containing bulky items like sand filters, acoustic boxes, heat pumps, pool covers, and pool slides may incur additional fees as they require specialized carriers.
Below are the estimated time to arrival in business days once an order is shipped.
| Destination | Sydney | NSW | VIC | QLD | SA | WA/NT |
|---|---|---|---|---|---|---|
| Business Days | 1 - 2 | 2 - 4 | 2 - 4 | 2 - 4 | 3 - 4 | 5 - 6 |
Rural and remote addresses, where delivery is not provided every day, may take longer.
Returns
Satisfaction Guarantee: If you are not satisfied with a product for any reason, you are welcome to return it to us for a full refund or exchange within 30 days of the purchase date - even if you have used the product. Returns are free, and we will cover return shipping.
We take full responsibility for the safe arrival of the products that you order from us. We will replace at our expense any product that arrives faulty, damaged during transit, or is the incorrect product. Click here for details
If you have any questions about our shipping policy or our return policy, please contact us on 1300 766 619 or through our contact us form.