This vacuum attachment is designed for use with vinyl pool liners. It provides reliable holding power while protecting the liner and reducing strain on the pool pump during installation and maintenance. Key benefits Strong adsorption and stable hold: Engineered to maintain a firm grip after attaching, with low risk of detaching during use. Durable construction: Made from plastic with a thick texture for long service life. Smooth, safe handling: Exquisite workmanship with rounded, smooth surfaces and a sturdy structure to prevent hand injuries during handling. Pressure relief design: Builtin double safety valves vent under pressure when the vacuum surface becomes blocked or fully sealed on the pool floor. The valves release excess suction, reducing filter pump load and preventing the vacuum from pulling the pool liner. Function and compatibility Purposebuilt for vinyl pool liner work and compatible with typical pool vacuum setups and filter pump systems. Attaches to vacuum heads or hoses used during liner installation and pool cleaning to control suction and protect liner material. Operates automatically: valves activate when pressure increases, requiring no manual intervention to reduce suction. Use scenarios Installing a vinyl pool liner: hold liner sections in place and prevent the vacuum from pulling the material into the pump while seams are aligned. Routine vacuum cleaning: avoid excessive suction when a vacuum head seals against the pool floor and reduce stress on the filter pump. and inspection work: temporarily secure liner areas while making repairs or positioning components without risking liner damage. Product highlights Material: plastic for strength and durability Design: round, smooth finish and firm structure for safe handling Safety feature: double safety valves that vent under excess pressure to protect liner and pump This attachment offers practical performance for pool professionals and DIY users who work with vinyl liners and need reliable suction control and protection during installation and maintenance.