--- product_id: 671206754 title: "APEC Replacement ORing for ROES-50 3.5\" OD Reverse Osmosis Water Filter Housings, O-Ring (3 pcs O-RING-SET-B)" brand: "apec water" price: "€ 79.21" currency: EUR in_stock: true reviews_count: 5 category: "Apec Water" url: https://www.desertcart.at/products/671206754-apec-replacement-oring-for-roes-50-3-5-od-reverse store_origin: AT region: Austria --- # APEC Replacement ORing for ROES-50 3.5" OD Reverse Osmosis Water Filter Housings, O-Ring (3 pcs O-RING-SET-B) **Brand:** apec water **Price:** € 79.21 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** APEC Replacement ORing for ROES-50 3.5" OD Reverse Osmosis Water Filter Housings, O-Ring (3 pcs O-RING-SET-B) by apec water - **How much does it cost?** € 79.21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/671206754-apec-replacement-oring-for-roes-50-3-5-od-reverse) ## Best For - apec water enthusiasts ## Why This Product - Trusted apec water brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description APEC Replacement ORing for ROES-50 3.5" OD Reverse Osmosis Water Filter Housings, O-Ring (3 pcs O-RING-SET-B) : desertcart.in: Home & Kitchen Review: Worked perfectly the first time. Be sure to order the correct version. - I had no trouble replacing the o-rings for the three primary filters on my APEC Reverse Osmosis system and these o-rings worked perfectly in every respect. I did read some reviews indicating the o-rings were thinner than the originals, had a larger outside diameter than the originals and/or did not seal properly. I saw none of those problems and think I may know how to avoid those issues: • First and foremost, be sure to order the correct version. There is a Type “A” for systems manufactured before a certain pair of dates and a Type “B” for systems manufactured after those dates. Clicking on the Type “B” box will provide those dates. Be sure to select the correct (“A” or “B”) box before proceeding with ordering. My system was manufactured in 2018 so I ordered Type “B” and the replacement o-rings appeared identical to the originals. • I used food grade o-ring grease on all 3 o-rings and on the flat rubber washers at each end of the two carbon filters which I was installing. I spread the grease thinly but thoroughly over the surface of all items. The grease prevents friction loads which can damage rubber parts and can give a false indication of the torque applied. There are many brands available; I used Haynes Lubri-Film sanitary lubricant which costs about $8 for a 4 oz tube but will lubricate many o-rings per tube. • I used the wrench provided with the original set to tighten each filter case after installing. I pulled until each was a little more than firm; perhaps a 5-8 lb pull on the wrench. Good luck. I hope this has been helpful. Review: Très bien - Les trois seal ont très bien fonctionné système Osmos rev 5 stage ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07HFJDPGC | | Brand | APEC WATER | | Brand Name | APEC WATER | | Customer Reviews | 4.7 out of 5 stars 513 Reviews | | Item Diameter | 3.5 Inches | | Manufacturer | APEC WATER SYSTEMS | | Material | NSF-compliant materials | | Material Type | NSF-compliant materials | | Nominal Inside Diameter | 3.25 Inches | | Nominal Outside Diameter | 3.5 Inches | | Temperature Range | 60 to 100 Degrees Fahrenheit | | UPC | 851001007532 | | Unit Count | 1 Count | ## Product Details - **Material:** NSF-compliant materials - **Nominal Inside Diameter:** 3.25 Inches - **Item Diameter:** 3.5 Inches - **Brand:** APEC WATER - **Nominal Outside Diameter:** 3.5 Inches ## Images ![APEC Replacement ORing for ROES-50 3.5" OD Reverse Osmosis Water Filter Housings, O-Ring (3 pcs O-RING-SET-B) - Image 1](https://m.media-amazon.com/images/I/51MocFzG0-L.jpg) ## Questions & Answers **Q: What is different between type A and B?** A: This answer must be old since systems purchased after 6/30/2019 also need Type A. The product description states this. I also called the company to confirm this. **Q: Do these rings float in water?** A: No **Q: I need o-rings for an aquasana filter housing. they are 3.5" od and 1/8" thick. which of these match that?** A: Get it will fit **Q: will these o rings fit aquapure house filter?** A: Hello, these are industry standard 3.5" , designed for APEC pre filter housings. We recommend that you check with the manufacturer of your system for their recommendation on O-Rings. If you need any help or assistance, feel free to give us a call we are happy to help! Best Regards, APEC Support Team 800-880-4808. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked perfectly the first time. Be sure to order the correct version. *by A***R on 28 March 2019* I had no trouble replacing the o-rings for the three primary filters on my APEC Reverse Osmosis system and these o-rings worked perfectly in every respect. I did read some reviews indicating the o-rings were thinner than the originals, had a larger outside diameter than the originals and/or did not seal properly. I saw none of those problems and think I may know how to avoid those issues: • First and foremost, be sure to order the correct version. There is a Type “A” for systems manufactured before a certain pair of dates and a Type “B” for systems manufactured after those dates. Clicking on the Type “B” box will provide those dates. Be sure to select the correct (“A” or “B”) box before proceeding with ordering. My system was manufactured in 2018 so I ordered Type “B” and the replacement o-rings appeared identical to the originals. • I used food grade o-ring grease on all 3 o-rings and on the flat rubber washers at each end of the two carbon filters which I was installing. I spread the grease thinly but thoroughly over the surface of all items. The grease prevents friction loads which can damage rubber parts and can give a false indication of the torque applied. There are many brands available; I used Haynes Lubri-Film sanitary lubricant which costs about $8 for a 4 oz tube but will lubricate many o-rings per tube. • I used the wrench provided with the original set to tighten each filter case after installing. I pulled until each was a little more than firm; perhaps a 5-8 lb pull on the wrench. Good luck. I hope this has been helpful. ### ⭐⭐⭐⭐⭐ Très bien *by G***Z on 15 January 2025* Les trois seal ont très bien fonctionné système Osmos rev 5 stage ### ⭐⭐⭐⭐⭐ Good fit *by S***S on 12 September 2024* These fit, as they should once, I figured out how to remove the old ones. It was easy to replace them. They are a good value for the money. The thickness matches, where it needs to to keep everything sealed. They seem to be of higher quality and they appear to be very durable --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/671206754-apec-replacement-oring-for-roes-50-3-5-od-reverse](https://www.desertcart.at/products/671206754-apec-replacement-oring-for-roes-50-3-5-od-reverse) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-23*