We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Transparent cylindrical filter cartridge with quick-connect fittings, approximately 14 inches tall

Aqua-Pure

Aqua-Pure 5631616 Quick Connect Filter 0.5 gpm 0.5 Micron 350 gal

SKU CH-981R-81ZQ6

A quick-connect under-sink filter reduces chloramine, cysts, lead, MTBE, particulates and TTHM at 0.5 gpm with a 0.5 micron carbon cartridge rated for 350 gal

  • ColorTransparent
  • TypeTools
  • Reduces chloramine, cysts, lead, MTBE, particulates and TTHM for cleaner drinking water
  • 5 micron carbon block traps fine particles while maintaining 0.5 gpm flow rate
  • Quick-connect design fits H-300 series systems for fast under-sink filter changes
  • NSF-tested to 350 gallon capacity before replacement is needed
  • Operates up to 100 °F and 125 psi for standard residential plumbing

Quick-Connect Under-Sink Filter

The Aqua-Pure 5631616 is a drop-in cartridge for dedicated faucet systems. It uses carbon media to reduce chloramine, lead, cysts, MTBE, particulates and trihalomethanes at a rated 0.5 gpm. The housing measures 3-1/2 inches in diameter and 14-3/8 inches tall, with a service life of 350 gallons. It connects via the Quick Connect interface compatible with the H-300 series.

Households Needing Targeted Contaminant Reduction

This cartridge suits homes on municipal supplies where chloramine, lead or cyst removal is the priority. The 0.5 micron rating handles fine particulates but will not address dissolved minerals, fluoride or microbiological purification beyond the listed cysts. Buyers who need higher flow for whole-house treatment or a different contaminant profile should look at alternative configurations.

Steady Output Until Capacity Is Reached

Flow remains consistent at the rated 0.5 gpm while the carbon bed is active. The 350-gallon capacity provides a predictable replacement interval for typical drinking and cooking use. Maximum operating limits are 100 degrees F and 125 psi, so sustained pressure or temperature spikes beyond those points will degrade performance and require earlier change-out.

Highlights

  • Reduces chloramine, cysts, lead, MTBE, particulates and TTHM for cleaner drinking water
  • 5 micron carbon block traps fine particles while maintaining 0.5 gpm flow rate
  • Quick-connect design fits H-300 series systems for fast under-sink filter changes
  • NSF-tested to 350 gallon capacity before replacement is needed
  • Operates up to 100 °F and 125 psi for standard residential plumbing

Specifications

BrandAQUA-PURE
ColorTransparent
TypeTools

Questions about this item

Does this filter fit the H-300 housing I already have?

Yes, the compatible manufacturer model number is H-300, so it installs directly into that housing.

Will it reduce lead and chloramine at the rated .5 gpm flow?

The cartridge reduces lead, chloramine, cysts, MTBE, particulates and TTHM at .5 gpm with a 0.5 micron carbon block.

How do I know when the 350 gallon service life is reached?

Replace the cartridge after 350 gallons or when flow noticeably drops, whichever comes first.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.