Sometimes known as a 'Boston Valve', this two-way inflation Bestway Screw Valve is mainly used with Bestway Lay-z-spas, dingys and air mattresses but is also used on some Bestway Pools. It screws in to fit a 2cm diameter hole. Compatible with Lay-Z-Spa models except the Monaco, Napa, Helsinki and Singapore Please Note: We reccommend you measure the hole prior to ordering to make sure it is the correct size and part.The Regatta AirbedsSafety Information:Warning. Not suitable for Children under 3 years. Warning. Only to be used in water in which the child is within its depth and under adult supervision. Dear customers, welcome to our little store! Here, your satisfaction is our greatest pursuit. Wish you happy shopping! EXCELLENT QUALITY: This product is known for its excellent quality and durability, making it a great choice for you.，PATIENT AND METICULOUS: Our customer service is patient and meticulous, listening to your every need and answering your every question with all our heart. Indoor plants for home decor，Outdoor garden furniture，gardening tools for beginners，Eco-friendly planters and pots，Organic fertilizers for home gardens，Trendy succulents and cacti，Patio umbrellas and outdoor shades，Raised garden beds DIY kits，Hanging planters and baskets，Indoor herb garden kits，Gardening Potting Benches Tables，Potting Bench Sink，Potting Table Or Bench，Potting Bench Cart，Potting Benches，Potting Benches Tables Metal，Potting Benches，Patio and Garden Services，Garden Party-Furniture，Suncast，Patio Furniture Assembly Services，Garden Center，Jute Pillows，Exclusive Fabrics Decorative Pillows，Tufted Pillow，Hand Woven Pillows，Pillow Cording，Blush Fur Pillow，Farmhouse Throw Pillows，Boho Outdoor Pillows，Throw Pillows，Black Outdoor Pillows，White Outdoor Pillows，Home Summer Lookbook Decor