Commercial Stainless Steel 4" x 40" Membrane Pressure Vessel Housing. Commercial Stainless Steel 4" x 40" Membrane Pressure Vessel. 3/4 Feed and Drain Ports (FNPT).Double O-ring End Port Caps Included. Stainless Clamps, and Stainless Hardware Included. This item is in the category "Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters".usa" and is located in this country: US. This item can be shipped to United States, all countries in Europe, Canada, Mexico, Japan, Australia, China, Korea, South, Indonesia, Taiwan, South Africa, Thailand, Hong Kong, Bahamas, Israel, New Zealand, Philippines, Singapore, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Malaysia, Brazil, Chile, Colombia, Costa Rica, Dominican Republic, Panama, Trinidad and Tobago, Guatemala, El Salvador, Honduras, Jamaica, Antigua and Barbuda, Aruba, Belize, Dominica, Grenada, Saint Kitts-Nevis, Saint Lucia, Montserrat, Turks and Caicos Islands, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Ecuador, Egypt, French Guiana, Guadeloupe, Jordan, Cambodia, Cayman Islands, Sri Lanka, Macau, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Vietnam, Uruguay.