Source google image: https://images-na.ssl-images-amazon.com/images/I/61JSa9u0hTL._SX425_PIbundle-10,TopRight,0,0_SX425SY319SH20_.jpg
1/4 isolation washer
Source google image: https://images-na.ssl-images-amazon.com/images/I/61JSa9u0hTL._SX425_PIbundle-10,TopRight,0,0_SX425SY319SH20_.jpg