{"product_id":"envanptaz-weed-eater-replacement-head-for-echo-srm-trimmers-5-pack-speed-feed-400-heavy-duty","title":"Envanptaz Weed Eater Replacement Head for Echo SRM Trimmers, 5-Pack Speed Feed 400, Heavy-Duty","description":"\u003cp\u003e\u003cstrong\u003eEnvanptaz 5-pack replacement Speed Feed 400 trimmer heads are direct-fit, heavy-duty spool heads designed for Echo SRM straight-shaft trimmers to restore fast, reliable line feeding and prolonged work between service intervals.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Echo or compatible Shindaiwa straight-shaft trimmer is slowing down because of a worn-out head, this set gives you five robust replacements built for high RPM mowing and rough yard conditions. Each head is injection-molded from impact-resistant plastic to withstand knocks, and the Speed Feed-style spool lets you advance line quickly without disassembling the head. These units are intended for straight-shaft SRM models (not curved shaft) and do not include adapters, so confirm model compatibility before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhich trimmer models work with this replacement head?\u003c\/h3\u003e\n\u003cp\u003eThe Envanptaz Speed Feed 400 head fits many Echo SRM straight-shaft trimmers and several Shindaiwa equivalents. It replaces several OEM part numbers and is suitable for a wide spectrum of PAS and SRM variants used in residential and light commercial landscaping.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible Echo SRM models: SRM-210, SRM-225, SRM-230, SRM-250, SRM-265, SRM-266(S), SRM-280, SRM-2100, SRM-2400, etc.\u003c\/li\u003e\n  \u003cli\u003eAlso fits Shindaiwa part numbers 99944200907 and 99944200902 and replaces 78890-30000, 78890-11000, 78890-18001, 78890-18000.\u003c\/li\u003e\n  \u003cli\u003eWorks with PAS\/PAS series trimmers and many common commercial trimmer head types listed in the product features.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and reliable are these replacement heads?\u003c\/h3\u003e\n\u003cp\u003eEach head is constructed from sturdy, impact-resistant plastic formulated to resist cracking and wear from regular use. They are rated to perform at high rotational speeds, providing reliable operation when cutting through thick grass and weed clumps.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImpact-resistant molded housing reduces breakage on contact with rocks or rough terrain.\u003c\/li\u003e\n  \u003cli\u003eDesigned for continuous operation up to the head's rated RPM for consistent line delivery.\u003c\/li\u003e\n  \u003cli\u003eFive heads in the pack provide spare units to reduce downtime and maintenance trips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does the Speed Feed design mean for everyday use?\u003c\/h3\u003e\n\u003cp\u003eThe Speed Feed-style spool lets you advance trimmer line instantly by tapping the head while the shaft spins, avoiding disassembly and saving time on the job. This makes mid-job line changes faster and keeps you mowing instead of repairing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eQuick bump-feed action dispenses fresh line without stopping or opening the head.\u003c\/li\u003e\n  \u003cli\u003eSpool accepts common trimmer line sizes used in Echo-compatible heads.\u003c\/li\u003e\n  \u003cli\u003eIdeal for frequent line top-ups in heavy growth or uneven terrain situations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these heads require special adapters or fit curved-shaft trimmers?\u003c\/h3\u003e\n\u003cp\u003eThese replacement heads are made specifically for straight-shaft Echo SRM models and do not include adapters; they are not compatible with curved-shaft trimmers. If your trimmer uses an adapter or a different shaft style, check your model details before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo adapters included—verify your trimmer uses a direct-mount straight shaft interface.\u003c\/li\u003e\n  \u003cli\u003eNot suitable for curved-shaft or specialty shaft trimmer models.\u003c\/li\u003e\n  \u003cli\u003eMeasure your existing head or consult your owner's manual to confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Landscapers, contractors, and homeowners who use Echo or compatible straight-shaft trimmers and need an economical bulk supply of reliable replacement heads. This five-pack keeps backup spools on hand for longer seasons, reduces downtime during maintenance, and provides a cost-effective way to restore a trimmer’s bump-feed performance without buying OEM parts. If you need parts for curved-shaft tools or require adapter hardware, consider model-specific heads or adapter kits instead.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are adapters included for curved-shaft trimmers?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This pack does not include adapters and fits straight-shaft Echo SRM models only.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many replacement heads are in the set?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The package includes five Envanptaz Speed Feed 400 replacement trimmer heads.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Envanptaz","offers":[{"title":"Default Title","offer_id":53795514876251,"sku":"B0CX22Z8NY","price":1113.43,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1029\/4430\/9595\/files\/envanptaz-front-packaging-speed-feed-400.jpg?v=1786816747","url":"https:\/\/hallazora.com.mx\/products\/envanptaz-weed-eater-replacement-head-for-echo-srm-trimmers-5-pack-speed-feed-400-heavy-duty","provider":"Hallazora","version":"1.0","type":"link"}