Choosing seals, gaskets and O-rings comes down to matching the format to the job: a specified AS568 size, a broad assortment for air-conditioning work, or a large gasket with stated dimensions. The four options here span focused 100- and 125-piece packs, a 595-piece multi-size kit, and a 42-pack of large rubber rings, so count alone should not make the decision.
Quick take
- Select AS568 010 Black Viton O Rings 75 Durometer when the required designation is AS568-010 and a 125-piece FKM pack fits the task.
- Select AS568 012 Black Viton O Rings 75 Durometer when AS568-012 is the needed designation; it is also a 75-durometer FKM pack, in a quantity of 100.
- Select the 595 Pcs Air Conditioning O Ring Kit for a 36-size rubber assortment rather than a single designated size.
- Select the Industrial Rubber O-Ring Gaskets only when its stated 7-1/2-inch OD, 7-inch ID and 1/4-inch cross-section match the required ring dimensions.
Listed-price comparison
| Option | Listed price | Relative listed-price bar |
|---|---|---|
| AS568-010 FKM O-Rings, 125 Pack | USD 9.99 | |
| AS568-012 FKM O-Rings, 100 Pack | USD 9.99 | |
| 595-Piece Air Conditioning O-Ring Kit | USD 32.95 | |
| 7-1/2-inch OD Industrial Rubber O-Ring Gaskets, 42 Pack | USD 400.00 |
The listed prices run from USD 9.99 to USD 400. The matching price of the two AS568 FKM packs means the decision between them rests on the 010 versus 012 designation and the stated pack quantity, not listed price.
Decision matrix
- Need a named AS568 size: Use the number in the title as the starting point. AS568-010 points to the 125-pack; AS568-012 points to the 100-pack.
- Need FKM at 75 durometer: Both AS568 options are identified as 75-durometer FKM seals. Their shared construction and price make size designation the key split.
- Need many choices in one kit: The green rubber air-conditioning kit brings together 595 pieces across 36 sizes. Its description includes metric and inch size groupings.
- Need a large, stated ring geometry: The industrial gasket pack is specifically titled with a 7-1/2-inch outer diameter, 7-inch inner diameter and 1/4-inch cross-section.
- Condition matters to your selection: The three smaller-format choices are marked new, while the 42-pack industrial gasket option is marked new open box.
Product notes
AS568-010 Black Viton O Rings 75 Durometer, 125 Pack
The AS568-010 Black Viton O Rings 75 Durometer pack is the clear fit for work that calls for the AS568-010 designation and a 75-durometer FKM O-ring. Its 125-piece quantity is the larger of the two named AS568 pack counts here, which can suit repeat use of that one size. The item is marked new and identifies Belgium as its country of origin. Its constraint is equally clear: this is a focused AS568-010 pack rather than a multi-size selection. Choose it for the specific 010 designation, not as a substitute for a 36-size assortment or for the much larger 7-inch-ID gasket.
AS568-012 Black Viton O Rings 75 Durometer, 100 Pack
When the required designation is AS568-012, the AS568-012 Black Viton O Rings 75 Durometer pack keeps the choice straightforward. It pairs the stated 75-durometer FKM material with a 100-piece quantity and is marked new. At the same listed price as the AS568-010 pack, it makes most sense when 012 is the needed identifier rather than when the only goal is the highest piece count. The limitation is its fixed 012 designation and 100-piece format: it does not offer the 595-piece, 36-size spread of the air-conditioning kit, nor the stated large dimensions of the industrial gasket pack.
595 Pcs Air Conditioning O Ring Kit, 36 Size Seal Rubber O-Rings Assortment
The 595 Pcs Air Conditioning O Ring Kit is aimed at shoppers who need range rather than a single AS568 callout. The title identifies 595 pieces and 36 sizes, while the description groups the selection into commonly used metric and inch measurements. Its green rubber format is a distinct fit for air-conditioning repair and maintenance projects where several possible sizes may be required. The trade-off is that it is an assortment: it is labeled rubber, while the two fixed packs are specifically labeled FKM and 75 durometer. Pick this kit for size variety, not for a single preselected AS568-010 or AS568-012 pack.
Industrial Rubber O-Ring Gaskets 7-1/2-inch OD, 7-inch ID, 1/4-inch CS, 42 Pack
The Industrial Rubber O-Ring Gaskets pack is the dimension-led choice. Its title specifies a 7-1/2-inch outer diameter, 7-inch inner diameter and 1/4-inch cross-section, with 42 black rubber seals in the pack. That makes it the appropriate candidate when those stated measurements, rather than small assorted or AS568 sizes, are central to the requirement. It is identified as an O-ring gasket and marked new open box. The limitation is its USD 400 listed price and narrow large-ring format. It is not a general-purpose substitute for the lower-priced fixed-size packs or the 595-piece assortment.
Final recommendation by use case
For an exact FKM replacement format, choose the AS568 pack whose number matches the required designation: AS568-010 for the 125-piece pack or AS568-012 for the 100-piece pack. For air-conditioning work where multiple sizes are more useful than one named size, the 595 Pcs Air Conditioning O Ring Kit is the broadest-format choice. For a large rubber gasket requirement defined by 7-1/2-inch OD, 7-inch ID and 1/4-inch cross-section, the Industrial Rubber O-Ring Gaskets 42 Pack is the dedicated option.
