{"product_id":"castair-s-16d-075","title":"Castair S-16D-075","description":"\u003ch2\u003eCastair S-16D-075 Complete Air Filter Assembly — 3\/4” Inlet, 20 CFM, Silencer Type\u003c\/h2\u003e\n\n\u003cp\u003eThe Castair S-16D-075 is the factory intake air filter assembly for reciprocating compressor pumps with a 3\/4” NPT inlet, rated at 20 CFM. This is a silencer-type complete assembly — it filters incoming air and attenuates intake pulsation noise in a single unit. The filter element is included and pre-installed. Body dimensions are 6.75” outer diameter and 4.5” overall height, the same housing as the S-16D-050, with a 3\/4” NPT inlet thread.\u003c\/p\u003e\n\n\u003cp\u003eCastair has manufactured cast iron compressor pumps and all associated components in Spicer, Minnesota since 1991. The S-16D-075 is a direct OEM part for their pump line. If your pump has a 3\/4” NPT inlet and displaces up to 20 CFM, this is the correct filter assembly.\u003c\/p\u003e\n\n\u003ch3\u003eWhat the S-16D-075 Does\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects pump internals from contamination:\u003c\/strong\u003e Dust, metal particles, and shop debris entering an unfiltered pump intake accelerate piston ring and cylinder wall wear. This filter is the first line of defense for pump longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilencer function:\u003c\/strong\u003e The \"S\" prefix indicates silencer-type construction. The filter body reduces the intake valve pulsation noise characteristic of reciprocating pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete assembly:\u003c\/strong\u003e Ships with the 16D element pre-installed. Ready to mount directly to the pump inlet port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrectly sized for 20 CFM pumps:\u003c\/strong\u003e An undersized filter restricts inlet airflow and reduces pump output. This assembly is rated for 5–7.5 HP cast iron pumps with 3\/4” inlets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e S-16D-075\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Castair, Inc. (Spicer, MN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet Connection:\u003c\/strong\u003e 3\/4” NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 6.75”\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Height:\u003c\/strong\u003e 4.5”\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Rating:\u003c\/strong\u003e 20 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Silencer-type complete assembly with element\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement Element:\u003c\/strong\u003e 16D (ID 3”, OD 4-3\/8”, Height 2-1\/8”) — fits A4 pump\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCastair A4-series cast iron pump with 3\/4” NPT inlet\u003c\/li\u003e\n\u003cli\u003eReciprocating compressor pumps with 3\/4” NPT inlet connections displacing up to 20 CFM\u003c\/li\u003e\n\u003cli\u003eTypically associated with Castair 5–7.5 HP commercial and industrial compressor configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReplacement Element: 16D\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElement Part Number:\u003c\/strong\u003e 16D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 3”\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 4-3\/8”\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 2-1\/8”\u003c\/li\u003e\n\u003cli\u003ePer Castair published cross-reference, the 16D element fits both the S-16D-075 and S-16D-100 bodies and is specified for A4, VA80, C1, C2, and C3 pump models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Configurations — Castair Air Filter Lineup\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eS-16D-050\u003c\/strong\u003e — 1\/2” inlet, 6.75” OD x 4.5” height, 20 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS-16D-075\u003c\/strong\u003e — 3\/4” inlet, 6.75” OD x 4.5” height, 20 CFM (this unit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS-16D-100\u003c\/strong\u003e — 1” inlet, 6.75” OD x 4.5” height, 30 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS-20DP-100\u003c\/strong\u003e — 1” inlet, 6.75” OD x 7.0” height, 60 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS-20DP-125\u003c\/strong\u003e — 1-1\/4” inlet, 6.75” OD x 7.0” height, 60 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS-20DP-150\u003c\/strong\u003e — 1-1\/2” inlet, 6.75” OD x 7.0” height, 60 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS-32DP-200\u003c\/strong\u003e — 2” inlet, 7.5” OD x 7.5” height, 195 CFM\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen Does a Shop Need the S-16D-075 vs. Stepping Up or Down?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrder the S-16D-075\u003c\/strong\u003e if your compressor pump has a 3\/4” NPT inlet and displaces up to 20 CFM. Common on 5–7.5 HP cast iron pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep down to S-16D-050\u003c\/strong\u003e if your pump inlet is 1\/2” NPT. Same body size, smaller thread.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep up to S-16D-100\u003c\/strong\u003e for 1” NPT inlets running up to 30 CFM — common on 7.5–10 HP pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep up to S-20DP series\u003c\/strong\u003e for larger-displacement pumps (10–15 HP, up to 60 CFM). The 20DP body is taller with dual foam pre-filter construction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Castair S-16D-075 air filter assembly (silencer type), 3\/4” NPT inlet\u003c\/li\u003e\n\u003cli\u003e1x 16D filter element (pre-installed)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Castair OEM parts\u003c\/strong\u003e — correct fit, correct thread, correct element from the manufacturer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e on qualifying orders\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree tech support\u003c\/strong\u003e — call 866-217-0063 if you need help confirming which filter fits your specific pump\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFull manufacturer warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Castair filter lineup in stock\u003c\/strong\u003e — we confirm the right part before you order\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342596726997,"sku":"S-16D-075","price":0.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-s-16d-075","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}