{"product_id":"jacto-hd-400-4-gallon-heavy-duty-backpack-sprayer-white-viton-seal-65-psi-durable","title":"Jacto HD-400 4-Gallon Heavy-Duty Backpack Sprayer — White, Viton Seal \u0026 65 PSI Durable","description":"\u003cp\u003e\u003cstrong\u003eThe Jacto HD-400 is a heavy-duty 4‑gallon backpack sprayer built for landscapers, farmers and homeowners who need a leak-resistant, long‑lasting sprayer that handles caustic chemicals.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt around a UV-resistant polypropylene tank and a poly piston pump mounted inside the reservoir, the HD-400 prioritizes durability and safety. Independently tested for more than 1,500 continuous hours of operation, it reaches useful pressure quickly (six pumps to about 45 psi) and offers a maximum of 65 psi, making it suitable for a range of liquid applications. The model ships with a Viton piston cup for compatibility with harsher chemistries and includes comfort and convenience features that help reduce fatigue during extended use.\u003c\/p\u003e\n\n\u003ch3\u003eHow fast does the HD-400 build and hold working pressure?\u003c\/h3\u003e\n\u003cp\u003eThe HD-400 is engineered for efficient pumping so you spend less time pressurizing and more time spraying. The internal poly piston pump reaches working pressure in only six pumps and can achieve up to 65 psi when needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSix pumps to reach approximately 45 psi for routine spray tasks.\u003c\/li\u003e\n  \u003cli\u003eMaximum rated pressure of 65 psi for higher-demand jobs.\u003c\/li\u003e\n  \u003cli\u003eInternal pump mounting reduces external leak points for consistent pressure retention.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this sprayer safe to use with corrosive or caustic products?\u003c\/h3\u003e\n\u003cp\u003eYes — the HD-400 includes a Viton piston cup, chosen specifically for resistance to many aggressive chemicals. Combined with a polypropylene tank and metal bushings where durability matters, the unit stands up better to corrosive solutions than general-purpose sprayers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eViton piston cup improves chemical compatibility for tougher formulations.\u003c\/li\u003e\n  \u003cli\u003ePolypropylene UV-resistant tank resists degradation from solvents and sun exposure.\u003c\/li\u003e\n  \u003cli\u003eStainless steel wand and heavy-duty metal trigger resist corrosion at key contact points.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comfort and usability features reduce fatigue during long shifts?\u003c\/h3\u003e\n\u003cp\u003eErgonomics are a focus: padded, quick-adjust shoulder straps and a shaped carry handle help distribute weight while the lockable trigger reduces hand strain during repetitive spraying. The convertible pump lever and two axle positions let left- or right-handed operators set the unit up for easier, more efficient use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdjustable padded shoulder straps for prolonged comfort.\u003c\/li\u003e\n  \u003cli\u003eHandle and lance locks for secure storage and transport.\u003c\/li\u003e\n  \u003cli\u003eConvertible pump lever and two axle positions for left\/right preference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components help with maintenance and field repairs?\u003c\/h3\u003e\n\u003cp\u003eThe HD-400 is designed so routine maintenance and simple field repairs are straightforward. Metal bushings, a removable pump lever that doubles as a repair tool, and a large fill opening make servicing and refilling quicker and less messy.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemovable pump lever doubles as a field repair tool.\u003c\/li\u003e\n  \u003cli\u003eLarge fill opening and clear volume markings in gallons and liters for fast refills and accurate mixing.\u003c\/li\u003e\n  \u003cli\u003eDurable composite base and metal bushings for long life under heavy use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Jacto HD-400 is aimed at professionals — landscapers, growers, pest control technicians — and serious homeowners who need a reliable, chemical-compatible backpack sprayer. It suits anyone who requires a rugged, easy-to-maintain unit with ergonomic carrying features and quick pump-up performance for daily or repeated tasks. Backed by a three-year commercial warranty, it’s a practical choice when durability and chemical resistance matter.\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: Does the HD-400 work with caustic chemicals?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The HD-400 uses a Viton piston cup and polypropylene tank materials for improved compatibility with many caustic products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What warranty does the Jacto HD-400 include?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The sprayer comes with a three-year manufacturer’s commercial warranty; see the owner’s manual for full terms.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Jacto","offers":[{"title":"Default Title","offer_id":56806054003028,"sku":"B01NA6MGDE","price":217.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/jacto-hd400-front-pack-view.jpg?v=1786812643","url":"https:\/\/gardenluxe.co.uk\/products\/jacto-hd-400-4-gallon-heavy-duty-backpack-sprayer-white-viton-seal-65-psi-durable","provider":"Gardenluxe Uk","version":"1.0","type":"link"}