Watts Quarter-Turn Supply Stop, CTS Inlet Type, 250 psi - 3538-10

Watts Quarter-Turn Supply Stop, CTS Inlet Type, 250 psi - 3538-10

Marsoni

M251S

$46.67

Get it in 3 business days with 1 day shipping. Friday, May 29

Watts Quarter-Turn Supply Stop, CTS Inlet Type, 250 psi - 3538-10Quarter Turn Supply Stop; Body Style Valves: 3 Way; Inlet Size: 1 2 in; Inlet Type: CTS; Outlet Size: 1 2 in; Outlet Type: CTS; Max. Pressure: 250 psi; Temp. Range: 40 Degrees to 180 Degrees F; Body Material: Polysulfone; Standards: ASTM F87 7, CSA B137. 5, FDA Approved, IAPMO IGC 188 2004c Certified, NSF 14 And 61 Certified, NSF UP; Green Certification or Other Recognition: NSF(R) Certified (Sustainability or Environmental Standard)

Easy Shipping

Quick Dispatch:

Your Watts Quarter-Turn Supply Stop, CTS Inlet Type, 250 psi - 3538-10 orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Watts Quarter-Turn Supply Stop, CTS Inlet Type, 250 psi - 3538-10 ships.

Need Help?
Questions about Watts Quarter-Turn Supply Stop, CTS Inlet Type, 250 psi - 3538-10, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Watts Quarter-Turn Supply Stop, CTS Inlet Type, 250 psi - 3538-10 in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

This is a great filter for allergies and a huge help during allergy season. It traps fine dust and pollen much better than the standard paper filters you get from the dealership, resulting in noticeably cleaner air inside the cabin. The construction feels very solid, and it fit perfectly right into the housing without any issues. If you are looking for true HEPA filtration in your vehicle, this is definitely worth the upgrade!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 13, 2026

Verified Purchase

Port Orchard, US

★★★★★ 5

Saved over $60 and felt like a DIY hero!

Size: 7.5" x 8.7" x 1.4"

I bought the BOSCH 6092C HEPA Cabin Air Filter after a tire/service center quoted $76 to do the same job I did in no time. Instead, I watched a quick YouTube video, grabbed a screwdriver, and had it swapped out in under 5 minutes—no sweat, no special tools. The filter itself is high quality, fits perfectly, and noticeably improved the air quality in my car. No weird smells, and the airflow feels cleaner and stronger. Honestly, it’s one of the easiest upgrades I’ve ever done. If you’re even slightly handy (or just tired of paying for basic service), this is a no-brainer. Great product, easy install, and a satisfying win for anyone who likes saving money and doing things themselves.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on October 18, 2025

Verified Purchase

Belleville, US

★★★★★ 5

Great aftermarket filter

Size: 7.5" x 8.7" x 1.4"

Performance will be TBD but after a test air does smell a bit cleaner. It Fits a 2018 Subaru Impreza just like the OEM does. Material is significantly better as well. The only thing that will cause confusion is the arrow designation many are used to. The OEM will state which way the filter is to be oriented (up), and this aftermarket version designates which way airflow goes which is usually in the direction of the blower or engine bay (down). Keep that in mind. Otherwise, it’s so easy and such a good peace of mind maintenance item everyone should do and NEVER pay the dealer.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on December 6, 2025