{"product_id":"prevost-alto-4-filter-regulator-tm-204-tm-205","title":"Prevost ALTO 4 Filter-Regulator — 3\/4\" \u0026 1\" FNPT, 7–145 PSI","description":"\u003cp\u003eThe \u003cstrong\u003ePrevost ALTO 4\u003c\/strong\u003e filter-regulator combines water separation, particulate filtration and pressure regulation in a single 3\/4\" or 1\" body. It is the high-flow answer to the popular Prevost ATU filter-regulators, which stop at 1\/2\" — if you have outgrown a 1\/2\" unit, this is the Prevost part that replaces it.\u003c\/p\u003e\n\n\u003cp\u003eCombining both functions in one module saves you a fitting, a nipple and roughly half the wall space of a stacked filter plus regulator. The relieving diaphragm regulator vents excess downstream pressure when you dial the setting back, the knob locks by pushing down, and a 1\/4\" gauge port accepts a gauge on either side. Condensate dumps through a manual push-button drain.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort sizes:\u003c\/strong\u003e 3\/4\" FNPT and 1\" FNPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow rate:\u003c\/strong\u003e 150 CFM (3\/4\") \/ 177 CFM (1\") at 87 psi, ΔP = 14 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustment range:\u003c\/strong\u003e 7 to 145 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegulator type:\u003c\/strong\u003e Relieving diaphragm, lockable knob\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge port:\u003c\/strong\u003e 1\/4\" (gauge sold separately)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrain:\u003c\/strong\u003e Manual push-button\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e Aluminum alloy with metal bowl guard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement element:\u003c\/strong\u003e Prevost TF C45, 25 micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Prevost ALTO 4 air treatment module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Variants \u0026amp; SKUs\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003ePort Size\u003c\/th\u003e\n\u003cth\u003eFlow Rate\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTM 204\u003c\/td\u003e\n\u003ctd\u003e3\/4\" FNPT\u003c\/td\u003e\n\u003ctd\u003e150 CFM at 87 psi (ΔP = 14 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTM 205\u003c\/td\u003e\n\u003ctd\u003e1\" FNPT\u003c\/td\u003e\n\u003ctd\u003e177 CFM at 87 psi (ΔP = 14 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eFlow ratings are taken from the Prevost 2026 US price list. If you need more than 150 CFM on a 3\/4\" port, step up to the 1\" TM 205 and reduce at the outlet, or run a separate ALTO 4 filter and regulator.\u003c\/p\u003e","brand":"Prevost","offers":[{"title":"3\/4\" FNPT | 150 CFM","offer_id":54579651346707,"sku":"TM 204","price":281.41,"currency_code":"USD","in_stock":true},{"title":"1\" FNPT | 177 CFM","offer_id":54579651379475,"sku":"TM 205","price":287.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/3141\/8387\/files\/Prevost-TM-204-ALTO-4_c9cb0405-f280-4fdc-a160-55c677c1d809.jpg?v=1787067828","url":"https:\/\/aircompressorstore.com\/products\/prevost-alto-4-filter-regulator-tm-204-tm-205","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}