Hayward SX180K Replacement Filter Base for Pro & High-Rate Sand Filters, Includes Screws & Washers, Direct-Fit

Hayward SX180K is a direct-fit replacement filter base that restores the lower housing and mounting points for select Hayward Pro and High-Rate sand filters, supplied with screws and washers for straightforward installation.

This replacement base is engineered to fit a range of Hayward sand filter models so you can repair a cracked or worn lower housing without replacing the entire tank. It is compatible with Hayward Pro series and several High-Rate models, and it includes the mounting hardware you need to secure the multiport valve and laterals. At 37.7 pounds, the base provides durable support and correct alignment for long-term pool filtration performance.

Which Hayward models will this SX180K base fit?

The SX180K base is designed for direct compatibility with many Hayward Pro series sand filters and selected High-Rate units. Check model numbers on your existing filter to confirm the match before ordering.

• Pro series: S180T, S210T, S220T, S220T2, S230T, S244T, S244T2, S270T, S164T, S166T
• High-Rate series: S170TSCPE, S190TSCPE, S190TSCPFT, S190TSCPT
• Also compatible with Hayward S210T1580 series sand filter

How easy is it to install the replacement base?

Installation is straightforward for a person comfortable with basic pool equipment maintenance; the base arrives with screws and washers to simplify reassembly. Typical steps include draining the tank, removing the old base, positioning the new base, and fastening the multiport valve and plumbing back in place.

• Includes screws and washers to secure valve and plumbing
• Works with existing laterals and sand media when replacing only the base
• Requires basic hand tools and a safe, drained work area

What are the physical and durability details I should know?

The SX180K replacement base is built to match the original equipment’s dimensions and bearing points so the internal parts align correctly. At 37.7 pounds, the base offers stable support for the tank and plumbing while resisting typical outdoor exposure.

• Heavy-duty construction for consistent support and alignment
• Pre-drilled mounting points to match Hayward valve and fittings
• Sized to accept original laterals and sand in most compatible models

Will I need to replace other parts at the same time?

You can often replace just the base if the rest of the tank and internals remain in good condition, but inspect the laterals, multiport valve, and O-rings during the repair. Replacing worn internal components while the tank is open reduces future downtime and helps ensure filtration performance.

• Inspect laterals and laterals hub for cracks or wear
• Check valve seals and O-rings; replace if brittle or damaged
• Consider refreshing sand if it’s been in service for several years

Who is this product for: The Hayward SX180K filter base is intended for pool owners, service technicians, and maintenance professionals who need a reliable, OEM-compatible replacement for the lower housing on selected Hayward Pro and High-Rate sand filters. It’s a practical choice when the tank base is damaged but the rest of the filter assembly remains usable, offering a cost-effective repair option that restores proper fit and plumbing alignment.