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Electronic Timer Condensate Drain Valve for A...: 
Nitrile (NBR) O-Ring Assortment Kit, Metric, ...: | Part Type | Compressed Air Filter Element |
| Replaces | Walker Filtration E731X1 |
| Filtration Rating | 0.1 µm, oil carry over 0.1 mg/m3 (grade X1) |
| Media | Borosilicate glass fibre, coalescing |
| Stat. HS-Code | 842139 |
| Country of Manufacture | China |
| Brand | Code |
|---|---|
| Atlas Copco | 2255292819 |
| HiFi Filter | SI 90731 |
| Noitech | NM 000507 |
| Spare Part Mart | SPM-INF-3874 |
| Walker Filtration | E731X1 |
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| The Air Market | USD 137.31 | 22 Oct 2026 |
| Nordic Filtration | USD 162.40 | 22 Oct 2026 |
| FilterFinder Online | USD 208.00 | 22 Oct 2026 |
| Spare Part Mart | USD 52.01 | Today |
Our price of USD 52.01 is 62% to 75% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Scheduled service
Change the element at least once a year, or sooner if the differential pressure gauge on the housing shows it is loaded.
Breakdown spares
Keep one on the shelf so a loaded compressed air filter element does not stop the machine while parts are ordered.
Workshop and fleet stock
Workshops looking after several machines can stock this one element under any of its 4 part numbers.
No. It is an aftermarket compressed air filter element made to replace the Walker Filtration E731X1. It is not made by or affiliated with Walker Filtration, and the part number is used only to show what it replaces.
It replaces the element numbered Walker Filtration E731X1 and the other numbers in the cross reference table. Check the number on the old element or in the machine's parts list.
Change the element at least once a year, or sooner if the differential pressure gauge on the housing shows it is loaded.
Isolate the filter housing and let the pressure out. Unscrew the bowl, pull the old element off its seat, fit the new element with its O rings lightly lubricated, refit the bowl and pressurise slowly. Check for leaks.
Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.
Prices depend on your ZIP or postcode.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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Opens the Marty Mates panel. No password: you enter your email, we send a code, and that is you in with your 200 points waiting. Joining signs you up to our emails and you can leave any time from the link in any of them. See our terms and conditions.
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We will only bother you when it is worth it: a member deal, a specials drop, a way to earn points faster, or a heads up that a part you bought is due.
Join Marty Mates and we put 200 points on your account, worth $10 off an order over $75 USD. Then a point for every dollar you spend after that.
No password: you enter your email, we send a code, and that is you in.
