--- product_id: 46718669 title: "S-314MKIT ColorFit Coupler & Plug Kit - (M-Style, Red) - 1/4\" NPT, (14-Piece)" brand: "milton" price: "¥8905" currency: JPY in_stock: true category: "Milton" url: https://www.desertcart.jp/products/46718669-s-314mkit-colorfit-coupler-and-plug-kit-m-style-red store_origin: JP region: Japan --- # Color-coded for easy line ID Universal 1/4" NPT compatibility Durable anodized steel sleeves S-314MKIT ColorFit Coupler & Plug Kit - (M-Style, Red) - 1/4" NPT, (14-Piece) **Brand:** milton **Price:** ¥8905 **Availability:** ✅ In Stock ## Summary > 🔧 Connect with confidence — color your workflow red-hot! ## Quick Answers - **What is this?** S-314MKIT ColorFit Coupler & Plug Kit - (M-Style, Red) - 1/4" NPT, (14-Piece) by milton - **How much does it cost?** ¥8905 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/46718669-s-314mkit-colorfit-coupler-and-plug-kit-m-style-red) ## 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 - • **Built to Last:** Scratch-resistant anodized steel sleeves ensure your kit stays pristine through heavy use. - • **Color-Coded Precision:** Red-to-red matching eliminates costly air line mix-ups and boosts workflow efficiency. - • **Complete 14-Piece Kit:** Everything you need in one compact set to streamline your pneumatic tool connections. - • **Seamless Compatibility:** Works flawlessly with Milton and competitor M-style couplers and plugs for ultimate versatility. - • **Pressure-Ready Performance:** Rated up to 300 PSI, engineered for demanding industrial and professional applications. ## Overview The Milton S-314MKIT is a 14-piece M-Style pneumatic coupler and plug kit featuring anodized red aluminum and durable steel sleeves. Designed for easy color-coded matching to prevent air line cross-contamination, it supports 1/4" NPT threaded connections compatible with Milton and competitor M-style fittings. Rated for up to 300 PSI, this kit combines durability, precision, and versatility to optimize industrial and professional air tool setups. ## Description MILTON 14-Piece M-Style Color Fit now offers a customized color-coded system that allows for easy matching of couplers and plugs, among the range of standard Industrial pneumatic air coupler quick connects. Great way to solve that annoying problem of potential cross-contamination between different air lines. By dedicating certain colors to different air lines, this will eliminate the risk of mixing a lubricated line with a dry air line which will prolong your applications and help to quickly finish any project. Each piece is coated with Anodized Red aluminum and heavy-duty steel sleeves to prevent scratches or dulling of the coupler and plug after use. Compared to Legacy ColorConnex A73458D.PACKAGE CONTENTS: 6 Male Plugs 4 Female Plugs 2 Male Couplers 2 Female CouplersPUT COLOR TO USE IN YOUR SHOP: Easily match couplers to the right plugs using color, (red to red)- no more guessing. Use color to distinguish between air lines, such as lubricated vs. non-lubricated, or high pressure vs. low pressure.SUPERIOR PRODUCT DESIGN: Durable patent-pending steel sleeve design outlasts the competition by putting steel where you need it most. Milton uses an advanced, proprietary anodizing process.COMPATIBILITY: ColorFit M-style couplers and plugs are compatible with traditional Milton M-style couplers and plugs, competitor M-style couplers and plugs, and competitor red couplers and plugs. All threaded connections are 1/4"" NPT.SPECIFICATIONS: Do not exceed 300 PSI. For use with compressed air only. **Disclaimer: MILTON INDUSTRIES is NOT affiliated with Legacy-ColorConnex- X-Flow. ## Features - M-Style: Milton M-Style, Colorfit M-Style, + Red Competitor Couplers/Plugs Are All Compatible - Durable: Scratch-Resistant Steel Design In An Anodized Coating For Optimal Wear Vs. Aluminum Sleeves - Easy Match: Use Color To Distinguish Between Air Lines (E.G. High Pressure Vs. Low Pressure) - Color: Red To Red Matching - (M/Industrial) Air Coupler/Plug Fittings, Easy Push To Connect ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B073R7GG98 | | Best Sellers Rank | #9,996 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in Air Tool Fittings | | Brand Name | Milton | | Color | Original Version | | Connector Type | Coupling, Plug | | Customer Reviews | 4.6 4.6 out of 5 stars (7,748) | | Exterior Finish | Aluminum | | Global Trade Identification Number | 00030937322579 | | Included Components | 1 Milton Branded Product | | Item Dimensions | 0.9 x 0.9 x 1.9 inches | | Item Type Name | Milton S-314MKIT Kit, 14pc M style 1/4" | | Item Weight | 2.56 ounces | | Manufacturer | Milton | | Manufacturer Part Number | S-314MKIT | | Manufacturer Warranty Description | One Year Limited | | Material Type | Alloy Steel, Aluminum | | Model Number | S-314MKIT | | Number of Packs | 1 | | Number of Pieces | 14 | | Set Name | Milton S-314MKIT 14-Piece Kit | | Size | 14 Piece | | Thread Type | NPT | | UPC | 703570502607 370114735410 342192282933 374528297571 030937322579 604945364137 359627589628 | | Unit Count | 1 Count | ## Product Details - **Brand:** Milton - **Color:** Original Version - **Connector Type:** Coupling, Plug - **Exterior Finish:** Aluminum - **Item Weight:** 2.56 ounces - **Item dimensions L x W x H:** 0.9 x 0.9 x 1.9 inches - **Material:** Alloy Steel, Aluminum - **Number of Pieces:** 14 - **Size:** 14 Piece - **Thread Type:** NPT ## Images ![S-314MKIT ColorFit Coupler & Plug Kit - (M-Style, Red) - 1/4" NPT, (14-Piece) - Image 1](https://m.media-amazon.com/images/I/6106D3NyY9L.jpg) ## Available Options This product comes in different **Number Of Items, Style** options. ## Questions & Answers **Q: What is the lifespan of these connectors?** A: Usally my hoses gets holes before the connectors give out. **Q: You carry 3/8** A: These are for a 3/8" air line if that's what you're asking? The Fittings/couplers themselves are marked style "M" **Q: Are these water tight?** A: I bought this pack from Harbor Freight specifically to use for water lines at residential pressure levels (my home is 90-120psi), and the connection was water tight for me. **Q: Can these handle air and steam?** A: I do not know if they will handle steam. I bought them for use with an air compressor -up to 300 psi. I have had no problems with them. Make sure to use teflon tape on any threaded connections. ## Frequently Bought Together - Milton S-314MKIT ColorFit Coupler & Plug Kit - (M-Style, Red) - 1/4" NPT, (14-Piece) - JASTIND Industrial Air Blow Gun with Brass Adjustable Air Flow Nozzle and 2 Steel Extension, Pneumatic Air Compressor Accessory Tool Dust Cleaning and Blower Gun - Flexzilla Air Hose, 3/8 in. x 50 ft., 1/4 in. MNPT Fittings, Heavy Duty, Lightweight, Hybrid, ZillaGreen - HFZ3850YW2 --- ## 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.jp/products/46718669-s-314mkit-colorfit-coupler-and-plug-kit-m-style-red](https://www.desertcart.jp/products/46718669-s-314mkit-colorfit-coupler-and-plug-kit-m-style-red) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-23*