{"product_id":"thermostat-wire-18awg-cmr-cl2r-brown","title":"Thermostat Wire 18AWG Solid Bare Copper CMR CL2R Brown 2 3 4 5 8 Conductors","description":"\u003cp\u003eWire any thermostat or HVAC control system cleanly and reliably with this 18AWG solid bare copper thermostat wire, rated CMR\/FT4 and C(ETL)US Listed for permanent in-wall and riser installations. Available in six conductor counts to match every system, from a basic single-stage heater to a multi-stage smart thermostat or zoned heat pump installation.\u003cbr\u003e\u003cbr\u003eThe sunlight-resistant brown PVC jacket is the industry-standard color for thermostat wire — easy to identify on the job and resistant to UV, moisture, and temperature extremes. Solid bare copper conductors carry reliable signal between thermostats and HVAC equipment, and this same wire is commonly used for doorbell chimes and security alarm panel wiring.\u003cbr\u003e\u003cbr\u003eStandards: C(ETL)US Listed · CMR\/FT4 Rated · CL2\/CL2R · Sunlight Resistant\u003cbr\u003e\u003cbr\u003eTechnical Specifications:\u003cbr\u003e• Conductor: Solid Bare Copper · AWG: 18 · Conductors: 2 to 8\u003cbr\u003e• Insulation: Color-Coded PVC · Jacket: CMR-Rated PVC, Brown\u003cbr\u003e• 18\/2–18\/6: 500ft Reel · 18\/8: 250ft Reel\u003cbr\u003e• OD: 0.132 in. (18\/2) to 0.202 in. (18\/8)\u003cbr\u003e\u003cbr\u003eConductor Guide:\u003cbr\u003e• 18\/2 — Basic heating, doorbells, simple controls\u003cbr\u003e• 18\/3 — Single-stage heat\/cool + fan\u003cbr\u003e• 18\/4 — Most thermostats (R\/G\/Y\/C terminals)\u003cbr\u003e• 18\/5 — Heat pumps, auxiliary heat systems\u003cbr\u003e• 18\/6 — Multi-stage systems, emergency heat\u003cbr\u003e• 18\/8 — Smart thermostats, zoned HVAC systems\u003c\/p\u003e","brand":"Big-A-Cables","offers":[{"title":"2 Conductors \/ 500 Feet","offer_id":46005903524074,"sku":"1331-Big","price":93.95,"currency_code":"USD","in_stock":true},{"title":"3 Conductors \/ 500 Feet","offer_id":46005903556842,"sku":"4085-Big","price":129.95,"currency_code":"USD","in_stock":true},{"title":"4 Conductors \/ 500 Feet","offer_id":46005903589610,"sku":"4086-Big","price":164.95,"currency_code":"USD","in_stock":true},{"title":"5 Conductors \/ 500 Feet","offer_id":46005903622378,"sku":"1332-Big","price":198.95,"currency_code":"USD","in_stock":true},{"title":"6 Conductors \/ 500 Feet","offer_id":46005903655146,"sku":"4087-Big","price":224.95,"currency_code":"USD","in_stock":true},{"title":"8 Conductors \/ 250 Feet","offer_id":46005903687914,"sku":"1333-Big","price":159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6388\/8618\/files\/391572.png?v=1785384312","url":"https:\/\/bigacables.com\/products\/thermostat-wire-18awg-cmr-cl2r-brown","provider":"Big-A-Cables","version":"1.0","type":"link"}