(PICTURES SHOWN OF THIS PRODUCT ARE ONLY FOR THE PURPOSE OF SHOWINGTHE BASIC DESIGN OF THIS UNIT) MOST ORDERS SHIP IN 2-10 BUSINESS DAYS, FREE SHIPPING ON THIS PRODUCT ANYWHERE IN THE 48 STATES.SHIPPING DISCOUNTS AVAILABLE TO ALL OTHER LOCATIONSWORLDWIDE INCLUDING HAWAII AND ALASKA...PLEASE CONTACT US FOR DETAILS. TECHINCAL DESCRIPTION THE MODEL 225 CARBURETOR IS A SINGLE DIAPHRAGM AIR VALVE CARBURETOR/MIXER. IT OFFERS A DOWN-DRAFT AIR INLET THAT CAN BE USED FOR REMOTE AIR FILTRATION OR OPEN-ELEMENT TYPE AIR FILTERS. THIS UNIT IS AVAILABLE FOR PROPANE, NATURAL GAS AND DIGESTER GAS APPLICATIONS. IT HAS BEEN SUCCESSFULLY USED FOR OTHER HYDROCARBON BASED VAPOR FUELS AS LOW AS 500 BTU. THE MODEL 225 IS ALSO AVAILABLE FOR FEEDBACK APPLICATIONS WIHT THE 'FB' DESIGNATION. THESE FB MIXERS ARE AVAILABLE IN TAMPER RESISTANT CONFIGURATION, INDICATED BY THE PART NUMBER SUFFIX "-TR" ON THE PART NUMBER. TWO SEPARATE AIR VALVE VACUUM SUPPLIES ARE AVAILABLE WITH THIS MIXER. ADDITIONAL LOW SPEED MIXTURE CONTROL CAN BE OBTAINED TO LEAN AIR-FUEL MIXTURES WIHT OPTIONAL SHIMS. CHECK THE ACCESSORIES SECTION FOR MORE INFORMATION. ALL 225 DG SERIES MIXERS REDUCE AIRFLOW BY 30%TECHNICAL SPECIFICATIONSFUEL TYPE...........................................METHANE/PROPANE (550-2500 BTU)MAXIMUM FUEL INLET.....................PRESSURE 8.0 IN H20MAXIMUM BOOST PRESSURE..........5.0 psiAIR FLOW CAPACITY..........................80 cfm @ 2.0 IN Hg MANIFOLD (DERATE 15% FOR METHANE, 30% FOR DIGESTER GAS)HORSEPOWER RATING.......................................237 hp @ 2,500 BTU PER CUBIC FEET OPERATING TEMPERATURE................-40 DEGREE C TO 120 DEGREE C (-40 DEGREE F TO 250 DEGREEF)MATERIALS:BODY.........................................................ALUMINUMDIAPHRAGM.............................................SILICONEPLEASE SEE FOLLOWING DESIGN DETAILS FOR SPECIFIC PRODUCT SPECS:ITEM IS A 225M-2 MIXER ONLY THROTTLE BODY:N/A SAE FLANGE:N/A [A] CENTER TO CENTER BOLT SPACING:N/A [B] BORE:N/A [C] MIXER AIR HORN DIA.:148mm (5.813") [D]OVERALL WIDTH:159mm (6.250") [E] NPT INLET: 3/4" [F]OVERALL HEIGHT:N/A [G] THROTTLE BODY HEIGHT: N/A [H] THROTTLE SHAFT DIA.:N/A [I]FLANGE TO CENTER OF AIR HORN:N/AMost of the items in our eCRATER store are normal stock items and will ship the same day they are paid for...however...because we sell a lot of products outside of the eCRATER community...please understand that on a rare occasion an item may not be available for immediate shipment. If time is critical...please contact us to be sure the item is in stock before looking.Be sure to add me to your favorites list!Check out my other items!Sign up for PayPal; the fast, easy, and secure way to pay online.We have thousands of parts in stock, send us a message if you do notseethe part you need!Feel free to ask us about conversion kits for almost anything including trucks, cars, generators, tractors, boats, motorcycles, RVs etc. We can build a kit to convert almost any engine!