Will the PW OBJ K gravity water filter fit the water volume and daily use of a household?

You need enough countertop space for the unit’s footprint and enough patience for that output to refill your daily draw without strain. We selected it for this full review because its capacity and output are the two figures that govern household fit.

PW OBJ K stainless steel filter details and missing dimensions

The PW OBJ K is a stainless steel gravity water filter with 2 cartridges and a 6000-gallon filter life. The housing is 304 food-grade stainless steel, and the listing also states a faucet and stand are included. The height and width are not stated, so you should measure your counter space before you buy.

You can find our full review of the PW OBJ K for a deeper look at its technical specifications.

What to Check Before Buying the PW OBJ K

• Measure the countertop footprint first. The listing does not state height or width, so your space has to set the fit.
• Compare 4 gallons per hour with your daily draw. A larger household will feel that limit faster than a solo user.
• Check cartridge replacement against your household volume. The 6000-gallon life stretches farther for light use than for heavy daily filling.
• Look at your incoming water before installation. Heavy silt can clog a gravity filter early, so pre-filtration may matter if your source carries sediment.
• Confirm that the included stand and faucet suit your setup. Those parts affect where the unit sits and how you dispense water.

Where the PW OBJ K Sits Among Gravity Water Filter Options

The PW OBJ K suits you if you want a stainless steel gravity water filter with a fine 0.01-micron membrane and a stated 4 gallons per hour flow rate. If you need a larger countertop unit, faster refill cycles, or clearer dimensions for a tight space, you should keep looking. A gravity filter here is like a pitcher with a much larger reservoir: the stored volume and the refill pace both shape daily convenience. Choosing against those figures can mean a return, a replacement, or a rebuild of your setup.

If you have specific questions, see our PW OBJ K frequently asked questions section.

Choose the PW OBJ K if your household uses moderate amounts of filtered water, you want a long cartridge life, and your counter can accommodate an unstated footprint. If your daily demand is high or your space is fixed, a different gravity system may fit better.

Many households consider different options, so you may want to see the best gravity water filter for home use to compare.

Reviewed by the Predicament Measures editorial team.