Filbur FC-1285 Spa Replacement Filter Cartridge for Hayward 100 Sq Ft Xstream 100

Meet the Filbur FC-1285 Spa/Pool Replacement Filter Cartridge—the reliable, OEM-grade filtration solution your Hayward bottom-style housings deserve. Built around a 100 sq ft filtration area, this cartridge fits standard spa and pool setups with a 4" top and bottom, an 8-15/16" diameter, and a length of 17-3/8". It’s designed to replace a wide range of part numbers (including 19935, 4900-436, 4902-141, and more), making it a practical, drop-in upgrade for ongoing maintenance and consistent performance.

What makes the FC-1285 different

• Reinforced center cores with extruded PVC construction provide even stress distribution and higher debris loading, reducing the risk of cartridge collapse under heavy use.
• Premium 3 oz polyester media delivers durable filtration, easier cleanability, and sustained water clarity across spa and pool cycles.
• Antimicrobial end caps—reinforced for strength and treated to resist odor-causing bacteria and mold, helping your filter stay fresher longer in salt or high-chlorine environments.
• Wider support bands and sharp pleat folds minimize flutter and bridging, keeping pleats evenly spaced for optimal flow and deeper dirt penetration.
• End caps with integrated fittings eliminate the need for PAD adapters, simplifying installation and maintaining maximum flow.
• Embossed part numbers on the cartridge make future replacements quick and accurate, reducing search time when it’s time to refresh.

Why you’ll notice the difference

• Longer cartridge life thanks to a robust center core and antimicrobial construction that resists deterioration from salt pools and high chlorine levels.
• Improved filtration efficiency with deep dirt penetration enabled by the engineered pleat design, helping you maintain clearer water with fewer backwashes.
• Consistent performance across spa and pool regimes, preserving flow and reducing the risk of pressure differentials that compromise filtration.

Compatibility, installation and maintenance

The FC-1285 is designed as a direct replacement for Hayward bottom-style housings and accommodates the standard 4" top and bottom with a 17-3/8" length. Its integrated fittings streamline installation, and the absence of PAD adapters preserves optimum flow right out of the box.

Usage tips:

• Inspect the gasket and housing compatibility before installation to ensure a watertight seal and peak flow.
• During routine maintenance, rinse the cartridge with a gentle hose from the inside out to remove debris without damaging the pleats. Avoid high-pressure washing that can compress or tear the media.
• Plan filter changes based on pool/spa usage, water conditions, and backwash frequency—the FC-1285’s durable construction helps extend intervals between cleanings when properly maintained.

Ideal for whom and when

Designed for pool owners and spa enthusiasts who demand dependable filtration without frequent replacements. If you rely on a Hayward bottom-style filter housing and want a cartridge with proven durability in both salt and chlorine environments, the FC-1285 is a compelling choice. It’s especially suited for homes with heavy particulate load, frequent use, or installations that require a robust, long-lasting replacement filter cartridge.

Practical benefits in real-world scenarios

• Backyard pools during summer gatherings benefit from clearer water with less maintenance downtime.
• Spas with high bather turnover stay inviting thanks to sustained filtration efficiency and reduced odor buildup.
• Saltwater pools gain longevity from the antimicrobial and salt-tolerant end-cap formulation, preserving filter integrity over time.

Choose the Filbur FC-1285 Spa/Pool Replacement Filter Cartridge for a dependable, value-driven filtration upgrade that pairs with Hayward bottom housing and delivers consistent, long-lasting performance across spa and pool care routines.