Intex Krystal Clear 2,100 GPH Sand Filter Pump for Above-Ground Pools — 2,100 GPH, 24-Hour Timer

The INTEX Krystal Clear 2,100 GPH sand filter pump is a complete above-ground pool filtration system that uses sand and Hydroaeration technology to circulate, clarify, and oxygenate pool water with automatic scheduling.

This sand filter pump is designed for INTEX above-ground pools up to about 12,800 gallons, combining a six-function multiport valve, an integrated 24-hour timer, and Hydroaeration to boost water movement and surface oxygenation. It ships with two 1.5-inch connector hoses and requires minimal upkeep because the sand media can remain effective for years with routine backwashing. Built to deliver a rated capacity of 2,100 gallons per hour (gph) and an in-pool flow of roughly 1,600 gph, the unit balances performance and ease of use for seasonal pool owners.

How does this pump keep pool water clear and clean?

The pump forces pool water through a bed of sand that traps debris and particulates while the six-function valve lets you choose the right cycle for maintenance. Regular backwashing flushes trapped dirt out of the sand bed so filtration performance is restored without replacing the media frequently.

• Sand filtration captures fine particles for clearer water.
• Six-function valve: filter, backwash, rinse, recirculate, drain, close.
• Backwash extends sand life up to several years with proper care.

What scheduling and automation features are included?

A built-in 24-hour timer makes it simple to run the pump only when needed, with preset run intervals between two and twelve hours so you can optimize circulation and energy use. Set-and-forget scheduling reduces manual intervention while maintaining consistent filtration and aeration cycles.

• Integrated timer with 2–12 hour preset cycles for automatic operation.
• Easy plug-in power for straightforward use.
• Program cycles to match usage patterns and conserve energy.

How difficult is installation and routine maintenance?

Installation is straightforward: connect the included 1.5-inch hoses, secure the fittings, add sand to the filter tank, and plug the unit in. Routine upkeep is limited to periodic backwashing and occasional inspection of hoses and connections; most owners won’t need to replace the sand for up to five years with correct backwash routines.

• Suitable for INTEX pools up to ~12,800 gallons; partial assembly required.
• Includes two 1.5-inch (38 mm) connector hoses for immediate setup.
• Minimal maintenance: backwash instead of frequent media replacement.

What is Hydroaeration and why does it matter?

Hydroaeration is INTEX’s approach to mixing air into pool circulation to lift surface water, improve oxygen exchange, and help move debris into the skimmer. The added aeration supports better circulation patterns and can make the pool feel fresher without changing chemical treatment routines.

• Introduces aeration at the circulation point for improved surface movement.
• Helps increase negative ions at the water surface and enhances clarity.
• Works alongside filtration to improve overall water quality management.

Who is this for? The INTEX Krystal Clear 2,100 GPH sand filter pump is aimed at above-ground pool owners who want a low-maintenance, reliable filtration solution with automated scheduling and improved circulation. It fits seasonal homeowners, families, and renters with INTEX-compatible pools up to about 12,800 gallons who prefer a durable sand-based system and the convenience of a built-in timer and Hydroaeration. The included hoses and easy hookup also make it a solid upgrade for anyone replacing cartridge filters or aging pumps.