USA-BOPS offers a replacement packing unit to fit Hydril's 20 x 2000 MSP annular preventer. USA-BOPS' replacement unit is available in both natural rubber or synthetic (nitrile) rubber compounds.

Synthetic units are for oil base drilling fluids under normal temperature operating conditions.

Natural rubber units are for water base drilling fluids at normal operating temperatures with low temperature flexibility.

Item Number	Qty.	Description	Part Number
1	1	Head Gasket	202-37277
2	2	Medium Seal Ring	202-37379
3	2	Small Seal Ring	202-37380
4	2	Large Seal Ring	202-37378
5	1	Body Seal Ring	202-37381
**	1	Complete Seal Kit	202-50702
**	1	Synthetic Packing Unit	202-37375-S
**	1	Natural Packing Unit	202-37375-N

HYDRIL is a registered trademark of The Hydril Company.

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