Search·Pentek

When you know your system or housing model number, this page lists the replacement cartridges we match to it—compare length, diameter, and micron rating before you order.

Brand

Pentek

Model 158643

Pentek #10 Big Blue housing (1 in. inlet)

Series: Big Blue

These cartridge numbers are matched to this system model in our reference. Compare length, diameter, and micron rating with the filter you’re removing or your housing specs before ordering.

Primary part on file

DGD-5005

Pentek dual-gradient sediment cartridge

Replace about every 6 months

Fit confidence: strongOriginal part

DGD-5005 is the part shown first for model 158643; match that part number before checkout.

Why this part

23 mapped replacement cartridge options for this whole-home system model in our reference
Notes available for this part
When a BuckParts Verified Link appears below, we checked that retailer product page against this part number. Compare it with your old filter before ordering.

Replacement cartridge fit for this system model is based on our reference data.

BuckParts Verified Links

A place to buy that BuckParts has checked against the part, listing, and evidence we trust. Not every filter page has one—we only show a link when our checks clear for this part number.

Amazon

Shown as a BuckParts Verified Link after we checked the product page against this filter number (2026-04-23).

All details for this part (notes, compatible models, BuckParts Verified Links when listed)

Other parts that also fit this model

Less common crosses — open each for full part details.

Notes & next steps

Search again if you need a different model or part number.

Housing for 10 x 4.5 in. cartridges; confirm NPT port size and pressure rating before fittings.