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4.50" OD Conflat to 2.75" OD Conflat
Zero Length Reducer

4.50" OD Conflat to 2.75" OD Conflat
275x450 Flange To Flange Adapter
Zero Length Reducer

• Smaller Flange Has Tapped Holes
• Special Purpose Flange
• Different Size Conflat On Each Side
• Double-Sided Conflat Flange (CF)
• Double Faced CF Flange
• Weight: 3 lbs
• A: 4.50" OD Conflat
• B: 2.75" OD Tapped Conflat
• C: 1.50" (Thru)
• D: 0.68"

2-3/4" OD CF Conflat Flange (CF):
• 6 Tapped Holes
• 1/4-28 Thread
Uses 275-BT Tapped Bolt Kit

2.75" OD CF Conflat Flange (CFF) Equivalents
275CF, CF35, CF38, CF40, CF275
DN35CF, DN40CF, NW35CF Del Seal

4-1/2" OD Conflat Flange (CF):
• 8-Clearance (Thru) Holes
• 0.332" Bolt Hole Diameter

4.50" OD Conflat Flange (CFF) Equivalents
• 450CF, DN63CF, NW63CF, CF63, CF64 CF450
450x275-150-0-T1 Compare to: RF450X275 P102239 450-275-150Z 5000294 150008 FR04500275E

4.50" OD CF to 2.75" OD CF
Zero Length Reducer

450x275-150-0-T1Price: $217.75Price Drop: $88.00

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2.75" OD Conflat Series Hardware

4.50" OD Conflat Series Hardware

2.75" OD Conflat:
• 6-TAPPED Holes

4.50" OD Conflat:
• 8-Clearance Holes

***2.75" OD Conflat Flange Accessories Below***
2.75" OD Conflat - Copper Gaskets
2.75" OD Conflat - Viton Gaskets
2.75" OD Conflat - Tapped Bolt Kits

***4.50" OD Conflat Flange Accessories Below***
4.50" OD Conflat - Copper Gaskets
4.50" OD Conflat - Viton Gaskets
4.50" OD Conflat - Clearance Hole Bolt Kits

Contact LDS Vacuum with any questions:
Phone (407)862-4643 via Fax (407)862-8723 or

LDS Vacuum Products is a 100% woman owned company and
certified Woman Owned Small Business (WOSB)
The logos and/or trademarks appearing on this page are not owned by or registered to LDS but, rather, designate products sold by LDS, and are owned and/or registered to the manufacturers or suppliers of the products.