--- product_id: 368727778 title: "LASCO 17-6859 5/8-Inch Compression by 1/2-Inch Male Pipe Thread Brass Adapter" brand: "lasco" price: "£28.53" currency: GBP in_stock: true category: "Lasco" url: https://www.desertcart.co.uk/products/368727778-lasco-17-6859-5-8-inch-compression-by-1-2 store_origin: GB region: United Kingdom --- # Compatible with plastic & copper tubing 5/8" compression x 1/2" male NPT thread Lead-free brass, state-approved LASCO 17-6859 5/8-Inch Compression by 1/2-Inch Male Pipe Thread Brass Adapter **Brand:** lasco **Price:** £28.53 **Availability:** ✅ In Stock ## Summary > 🔧 Upgrade your flow with lead-free precision! ## Quick Answers - **What is this?** LASCO 17-6859 5/8-Inch Compression by 1/2-Inch Male Pipe Thread Brass Adapter by lasco - **How much does it cost?** £28.53 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/368727778-lasco-17-6859-5-8-inch-compression-by-1-2) ## Best For - lasco enthusiasts ## Why This Product - Trusted lasco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted LASCO Quality:** Backed by a reputable brand known for plumbing excellence, ensuring reliability and peace of mind. - • **Versatile Compatibility:** Seamlessly connects with both plastic and copper tubing, making upgrades and repairs effortless. - • **Compact & Durable Design:** Lightweight 57g adapter with robust brass finish built to last in tight spaces and demanding environments. - • **Precision Fit, Zero Leak:** Engineered 5/8" compression to 1/2" male pipe thread ensures a secure, drip-free connection every time. - • **Eco-Smart Lead-Free Build:** Crafted from lead-free brass, fully compliant with all state regulations for safe, sustainable plumbing. ## Overview The LASCO 17-6859 brass adapter features a 5/8-inch compression fitting paired with a 1/2-inch male NPT thread, designed for leak-proof connections with plastic and copper tubing. Made from lead-free brass and approved for use in all states, this compact, durable adapter weighs just 57 grams and delivers trusted LASCO quality for professional-grade plumbing solutions. ## Description LASCO Plumbing Specialties 17-6859 is a 5/8-Inch Compression by 1/2-Inch Male Pipe Thread Brass Adapter. Male adapter. Lead free brass construction. Lead free approved product in all states. Used with plastic and copper tubing. 5/8-Inch compression by 1/2-Inch male pipe thread. ## Features - Brass - Male pipe threads - Carded - Male adapter - Lead free brass construction.Lead free approved product in all states.Used with plastic and copper tubing.5/8-Inch compression by 1/2-Inch male pipe thread ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008E33CSC | | Brand | LASCO | | Brand Name | LASCO | | Color | Copper | | Colour | Copper | | Connector Type | Adapter | | Connector type | Adapter | | Exterior Finish | Brass | | Global Trade Identification Number | 00052151171368 | | Item Dimensions | 25 x 25 x 38 millimeters | | Item Weight | 57 g | | Item dimensions L x W x H | 25 x 25 x 38 millimeters | | Manufacturer | LASCO | | Manufacturer Part Number | 17-6859 | | Material | Copper , Lead, Plastic, Brass | | Material Type | Copper,Lead,Plastic,Brass | | Model Number | 17-6859 | | Number of Pieces | 1 | | Size | 5/8" x 1/2" | | Thread Size | 5/8-Inch Compression by 1/2-Inch Male Pipe Thread | | Thread Type | NPT | | UPC | 052151171368 | | Unit Count | 1 Count | ## Product Details - **Size:** 5/8" x 1/2" - **Material:** Copper,Lead,Plastic,Brass - **Brand:** LASCO - **Colour:** Copper - **Item dimensions L x W x H:** 38 x 25 x 25 millimeters ## Images ![LASCO 17-6859 5/8-Inch Compression by 1/2-Inch Male Pipe Thread Brass Adapter - Image 1](https://m.media-amazon.com/images/I/71FFve7V0jL.jpg) ## Questions & Answers **Q: Will this work on on a brass water shut off on claw foot tub the water shut off is 5/8 trying to connect it to 1/2 flex tube water supply line ?** A: If the pex tubing OD (outter diameter) is 5/8 it has the sleeve for pex **Q: I know i need 1/2 npt is this the correct adapter i need for 1/2 inch soft copper tubing with OD on 5/8 inch** A: Yes. i just used this on a install of 1/2 ID and 5/8 OD copper tubing **Q: Which side is the 5/8 and 1/2?** A: It is a 5/8 copper tube to 1/2 inch male pipe connector. **Q: is this the same fitting I would use to connect 1/2" plastic air line to a supply valve on a tractor trailer?** A: No. The Ferrell is different. You need brass for air break application. --- ## 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/368727778-lasco-17-6859-5-8-inch-compression-by-1-2](https://www.desertcart.co.uk/products/368727778-lasco-17-6859-5-8-inch-compression-by-1-2) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-08-27*