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The ornamental design for a spa filter, as shown. |
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FIG. 1 is a perspective view of a spa filter showing my new design;
FIG. 2 is a perspective view thereof, taken from a different angle;
FIG. 3 is a top elevational view thereof;
FIG. 4 is a side elevational view thereof; and
FIG. 5 is a side elevational view thereof, showing a different side.
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| D621902, | Oct 26 2009 | Spa mounted solar chlorine generator | |
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| D645566, | Jul 23 2010 | Apollo Industrial Co., Ltd. | Air piston for bubble generator |
| D645945, | Jul 23 2010 | Apollo Industrial Co., Ltd. | Filter support pipe for bubble generator |
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| 3036712, | |||
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Aug 17 1982 | COWLEY, HAROLD E | GERICO FIBERGLASS PRODUCTS, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 004043 | /0067 |
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