--- product_id: 115876472 title: "715-4 1/4\" FNPT M Style Coupler - Pack of 4" brand: "milton" price: "£32.23" currency: GBP in_stock: true reviews_count: 5 category: "Milton" url: https://www.desertcart.co.uk/products/115876472-715-4-1-4-fnpt-m-style-coupler-pack-4 store_origin: GB region: United Kingdom --- # 40 SCFM airflow capacity 250°F max temperature 1/4" FNPT precision fit 715-4 1/4" FNPT M Style Coupler - Pack of 4 **Brand:** milton **Price:** £32.23 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your air tool game with pro-grade Milton reliability! ## Quick Answers - **What is this?** 715-4 1/4" FNPT M Style Coupler - Pack of 4 by milton - **How much does it cost?** £32.23 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/115876472-715-4-1-4-fnpt-m-style-coupler-pack-4) ## Best For - milton enthusiasts ## Why This Product - Trusted milton brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Made in the USA:** Proudly crafted domestically with premium Buna-N seals for reliable airtight performance. - • **Heavy-Duty Brass Build:** Durable brass body and sleeve ensure long-lasting performance under pressure. - • **Military-Spec Precision:** Engineered to MIL-C-4109 standards for seamless compatibility across top brands. - • **Smooth Quick-Change Grip:** Ergonomic design offers effortless connect/disconnect, saving you time on the job. - • **Powerful Pressure Handling:** Supports up to 300 PSI for professional-grade pneumatic tasks. ## Overview The Milton S-715-4 is a pack of four 1/4" FNPT M style couplers built to military specifications, featuring a robust brass construction, Buna-N seals, and capable of handling up to 300 PSI and 40 SCFM airflow at temperatures up to 250°F. Designed for professionals demanding durability, precision, and seamless compatibility with industry-standard pneumatic tools. ## Description 1/4" FNPT M style Kwik change couplers will interchange with all manufacturers who comply with the dimensional requirements of military specification MIL-C-4109. M style couplers have a basic flow size of 1/4" and offer up to 300 PSI. Complete with a Buna-N Seal. These M style couplers have a brass body and sleeve with air flow of 40 SCFM. Review: heavy duty product , easy to install on the compressor air hose and work very good any time wen i use my air finish gum to do carpentry job .the grip to disconnect is so so good i use my my new rubber air hose with this coupler and i feel happy. i can see this female coupler is for professional and heavy duty users . i recommend ,you will feel in your fingers the difference respect to others similar product . Review: I am buying more Milton made in the USA products, all the fittings at Home Depot are cheap Chinese junk. ## Features - 1/4" female national pipe thread - Maximum pressure of 300 pounds per square inch - Air flow of 40 standard cubic feet per minute - Maximum temperature of 250 degrees Fahrenheit - Buna-N seal; Made in USA.1/4" female national pipe thread.Maximum pressure of 300 pounds per square inch.Air flow of 40 standard cubic feet per minute.Maximum temperature of 250 degrees Fahrenheit.Buna-N seal ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00YJ8PDJW | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 933,040 in DIY & Tools ( See Top 100 in DIY & Tools ) 5,287 in Air Tool Accessories | | Colour | Gold | | Customer Reviews | 4.7 4.7 out of 5 stars (2,017) | | Date First Available | 29 May 2015 | | Finish | Brass | | Included Components | 1 Milton Branded Product | | Item Package Quantity | 1 | | Item Weight | 109 g | | Item model number | S-715-4 | | Manufacturer | Milton | | Material | Brass | | Measurement System | Inch | | Number of Pieces | 4 | | Part Number | S-715-4 | | Power Source | Air Powered | | Product Dimensions | 12.07 x 10.16 x 3.81 cm; 108.86 g | | Size | pack of 4 | | Special Features | 1/4" female national pipe thread -Maximum pressure of 300 pounds per square inch -Air flow of 40 standard cubic feet per minute -Maximum temperature of 250 degrees Fahrenheit -Buna-N seal - - | | Style | Coupler | ## Product Details - **Brand:** Milton - **Colour:** Gold - **Connector type:** Coupling - **Exterior finish:** Brass - **Item dimensions L x W x H:** 12.1 x 10.2 x 3.8 centimetres - **Item weight:** 109 g - **Material:** Brass - **Size:** pack of 4 - **Thread size:** 0.25 inch - **Thread type:** NPT ## Images ![715-4 1/4" FNPT M Style Coupler - Pack of 4 - Image 1](https://m.media-amazon.com/images/I/61PSPqqB95L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: My 10+ year old s-715 hisses, even after installing new s-727 plugs. does the very small o-ring in this s-715 eventually wear out?** A: Yes, orings can get old and less plyable so they will not seal as well **Q: is this for high pressure propane on an RV tank?** A: The model number S-715 will be an air style fitting. The maximum pressure will be 300 PSI. **Q: Where is it made?** A: Mine says made in USA on packaging. Nothing listed on the part itself. I like mine, purchased several and all work good. Would buy again. **Q: If a single pack costs $4.68, why does a 2 pack cost $16.99 ??** A: Better quality or greed ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***. on 11 January 2014* heavy duty product , easy to install on the compressor air hose and work very good any time wen i use my air finish gum to do carpentry job .the grip to disconnect is so so good i use my my new rubber air hose with this coupler and i feel happy. i can see this female coupler is for professional and heavy duty users . i recommend ,you will feel in your fingers the difference respect to others similar product . ### ⭐⭐⭐⭐⭐ Review *by M***V on 14 August 2022* I am buying more Milton made in the USA products, all the fittings at Home Depot are cheap Chinese junk. ### ⭐⭐⭐⭐⭐ Review *by M***N on 1 September 2023* Works great and have a few spares. --- ## 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.co.uk/products/115876472-715-4-1-4-fnpt-m-style-coupler-pack-4](https://www.desertcart.co.uk/products/115876472-715-4-1-4-fnpt-m-style-coupler-pack-4) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-04*