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Hold-open device for gas spring, made of stainless steel
Brass cap 1 1/2" with external thread and internal triangular recess, for SD7 manhole cover
Top part for screw cap, made of stainless steel
Safety spring for support with gas spring L= 385 mm
Brass cap 1 1/4" for manhole cover SD1, SD2, SD3, SD4, SD5, SD6
Support for gas spring L= 687 mm
PVC sealing cap 1 1/4", for shaft cover SD1, SD2, SD3, SD4, SD5, SD6
Support for gas spring L= 385mm
Gas spring compatible with SD7 and SD7.R manhole cover
Total length 44 mm
Total length 55 mm
For SD7 with opening option from below