Here's my Casita overhead cabinet door holder modification. Door was about the same size as the one in a 21 that ETI said was too small for them to use gas shocks.
The spring hatch holder. From West Marine, catalog # 120030, Mfg. No. 0045-2, Hatch Support Spring, 8 1/2". Approx. $9 each, free shipping.
The spring hatch holder. From West Marine, catalog # 120030, Mfg. No. 0045-2, Hatch Support Spring, 8 1/2". Approx. $9 each, free shipping.