Focus RP-SL-33UGASKET Black Silicone Replacement U-Shaped Gasket For SL-33 New Style. This replacement U-shaped gasket is for SL-33 New Style. FOCUS innovates landscape lighting products and systems that will not only make your exterior environment more beautiful, safe and secure but will offer less maintenance, longer life, higher performance and more control features to make our lives enjoyable with less stress. Bring your landscape lighting needs into… FOCUS.