Fluid Control Parts Help Needed

[Nash B.]

Only another 1/2" is double in price? Are they at least going to cup yours gently when you buy em?

Volume for the 2" diameter ball is 4.2 cubic inches, and the volume of the 2.5" ball is 8.2 cubic inches (almost twice as much material).

And if they're hollow, surface area for the 2" diameter ball is 12.6 square inches, and the 2.5" diameter ball is 19.6 square inches (over 50% more material).

[YALE]

Only another 1/2" is double in price? Are they at least going to cup yours gently when you buy em?

Since they're a stainless core, and all the viton rubber is actually on the outside, there's actually a lot more rubber on the 2.5" vs. 2".