1/4 Inch Pipe Thread (Stainless Steel)

Grease Zerk Fittings: 1/4 Inch Pipe Thread (Stainless Steel)
Grease Zerk Fittings: 1/4 Inch Pipe Thread (Stainless Steel)
Item# GZS
$5.18
Part Number: 
Availability: Usually ships the same business day

See table below for part number & price of each size available. Then select the part number from pull down menu.

1/4 Inch Pipe Thread (Stainless Steel)
Part
Number
Thread
Size
Part
Desc.
Sale
Price
GZS-4SS 1/4-18 Straight 5.18

What is the "(+.30)" beside the item number I want to order in the drop down menu? ?