Introducing the Replacement Filter Bags intended for Porter Cable/ Stanley Disposable by POWERTEC. These high efficiency filter bags were specifically designed to fit Porter Cable and Stanley 4 gallon Wet/Dry Vacuums (see models below). They are fully disposable, and can be disconnected with ease - offering exceptional convenience when the job is completed or the bag is entirely full. Whether you've created a small or big mess, these bags will help keep your shop and work area clean, enabling you to experience a smooth and consistent workflow (the most important thing for any professional on a schedule). Please Note: Our filter bags perform at an optimal level when used for dry pickup, and collecting various types of dirt, dust and debris. Package Contains: 6 Filter Bags Compatible With: Porter Cable Wet Dry 4 Gallon Models • PCX18301-4B • PCX18301-4C Stanley Wet Dry Vac 4 Gallon Models • SL18301-3B • SL18301-4B • 25-1238 (AT25-1238) POWERTEC is a leading manufacturer of high quality woodworking tools and accessories, machines, and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry.