Converts a slip fitting to a smaller slip fitting.

1.0" to 3/4" - 437-211
1.5" to 1.0" - 437-211
1.5" to 0.75" - 437-210
1.5" to 0.5" - 437-209
2.0" to 1.5" - 437-251
2.0" to 1.0" - 437-249
2.0" to 0.75" - 437-248
2.0" to 0.5" - 437-247
2.5" to 2.0" - 437-292