Compatibility & Usage : Hatchlift RV bed lift kits are not a replacement springs and are for new RV installations only. Incompatible with foam mattresses. Order the correct kit for your current RV bed, not future upgrades/toppers. Ordering Guidelines : Order the correct kit for your current RV bed setup. Do not purchase for future mattress upgrades or adding a pillow topper later—kits are designed for existing configurations only. Measurement Requirements : For partial platform beds, measure the inside compartment dimensions before ordering. Accurate measurements ensure proper fit and functionality for your RV storage needs. Installation Requirements : These kits require woodworking/mechanical skills for installation. Not compatible with bunk beds, radius beds, side-load beds, or fixed base beds in slide-outs (deck, mattress, and base must slide together). Included Components: BLK King Standard kits include mounting hardware, wood blocks, and two 20 inches by 100 lb. gas springs. Perfect for standard king-sized RV beds with moderate-weight particle board decks. Exclusions : Not compatible with bunk beds, side-load applications, or RV beds in slide-outs with fixed base platforms. Verify compatibility with your bed setup before purchasing. Experience effortless lifting and enhanced durability with this heavy-duty RV bed lift system, featuring adjustable multi-positioning gas struts designed and manufactured to ISO 14000:2015 and IATF 16949:2016 standards for smooth operation, easy installation, and compatibility with plywood and particle board deck lids to simplify access and improve underbed storage convenience. Upgrade your RV storage with industrial-strength gas shocks that offer adjustable tension, corrosion-resistant hardware, and with safe and controlled motion to maximize space and withstand harsh climates without compromising ease of installation. Achieve unmatched stability and ergonomic comfort with this rust-resistant lift system, featuring quick-assembly components and adjustable gas struts that ensure smooth, controlled movement for heavy particle board deck lids. Engineered Designed with for heavy loads and all-season reliability in mind, this robust lift system combines reinforced steel brackets with adjustable smooth travel gas shocks to deliver steady, dependable performance and effortless handling of particle mattress board platforms in any environment. Transform your RV’s accessibility with durable, powder-coated gas struts that provide a secure, customizable fit for plywood and particle board deck lids, ensuring quick setup, long-lasting performance, and smooth, hassle-free operation every time.