{"product_id":"extron-spk-18-plenum-500-152-m-22-153-02","title":"Extron SPK 18 Plenum 18 AWG Speaker Cable 500 ft Spool 22-153-02","description":"\u003cp\u003e\u003cstrong\u003eExtron SPK 18 Plenum\u003c\/strong\u003e (part number 22-153-02) — plenum-rated 18 AWG Extron speaker cable, listed here on a 500 foot (152 m) spool.\u003c\/p\u003e\n\u003cp\u003eWhen a distributed audio design puts dozens of small speaker drops above a suspended ceiling, two things matter: the cable has to be light enough to manage in quantity, and its jacket has to satisfy the plenum rule for return-air voids. This part number answers both. The conductors follow the SPK pattern — one pair, bare copper, 18 AWG — with the raised strand count Extron uses so the cable stays pliable. Extron's own guidance is that its plenum bulk cable is rated for North America and is not certified across most of Europe.\u003c\/p\u003e\n\u003ch3\u003eKey Capabilities\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePlenum-rated SuperFlex jacket for return-air ceiling spaces\u003c\/li\u003e\n\u003cli\u003eTwo 18 AWG bare copper conductors, supplied as one pair\u003c\/li\u003e\n\u003cli\u003eSequential numbering along the jacket for on-site measuring\u003c\/li\u003e\n\u003cli\u003eListed as a 500 ft (152 m) spool instead of the full 1,000 foot reel\u003c\/li\u003e\n\u003cli\u003eExtron's current SPK 18 plenum listing is SPK18P\/1000, part 22-153-03\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere It Is Used\u003c\/h3\u003e\n\u003cp\u003eCeiling loudspeaker networks in corporate offices, schools and universities, healthcare paging and sound masking, hospitality and retail music systems, and transport terminals — wherever the run crosses an air-handling void and code calls for a plenum-rated jacket.\u003c\/p\u003e\n\u003ch3\u003eSpecifications at a Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConductor gauge: 18 AWG\u003c\/li\u003e\n\u003cli\u003eConductors: two, bare copper, one pair\u003c\/li\u003e\n\u003cli\u003eJacket: SuperFlex, plenum rated, sequentially numbered\u003c\/li\u003e\n\u003cli\u003eSpool length as listed: 500 ft (152 m)\u003c\/li\u003e\n\u003cli\u003eExtron part number: 22-153-02\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAvailability note: Extron's live SPK 18 part number table shows only 1,000 foot spools, so this 500 foot plenum put-up is a legacy configuration — confirm with Ampronix before ordering. Extron plenum bulk cable is rated for North America and is not certified for use in most European countries. Also referenced as Extron SPK18P, SPK-18-Plenum, part number 2215302.\u003c\/p\u003e","brand":"Extron","offers":[{"title":"Default Title","offer_id":52303164080348,"sku":"EXTRON-SPK18PLENUM500152M-2215302","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/5582\/4092\/files\/22-153-02-sq1080.jpg?v=1787252632","url":"https:\/\/www.ampronix.com\/products\/extron-spk-18-plenum-500-152-m-22-153-02","provider":"Ampronix","version":"1.0","type":"link"}