This bolt tightens the clamp which goes over the main piston cylinder. It is compatible with multiple Liquid Piston Filler Machines. 

Compatible With:

• E-FP-50
• E-FP-100
• E-FP-250
• E-FP-500
• E-FP-1000
• E-FP-50-D
• E-FP-100-D
• E-FP-250-D
• E-FP-500-D
• E-FP-100-DHH
• E-FP-500-DHH

California Residents: read Proposition 65 warning.