![[Brand] K9FZ1818 - Main view showing fittings kit for ASU18RLF1 and AOU36RLXFZ1 models](http://apcpart.com/cdn/shop/files/K9FZ1818-accessory-for-mini-split-system-k9fz1818-main.webp?v=1777209372&width=1946)
![[Brand] K9FZ1818 - Detailed view of upsized linesets for increased capacity](http://apcpart.com/cdn/shop/files/K9FZ1818-accessory-for-mini-split-system-k9fz1818-closeup.webp?v=1777209373&width=1946)
Accessory for Mini-Split System | K9FZ1818
Accessory for Mini-Split System | K9FZ1818
⚠️ Note: This item is final sale and not eligible for return.
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The K9FZ1818 Accessory for Mini-Split Systems is a specially designed Fittings Kit for 18 + 18 Indoor Combination. This kit enables the use of two ASU18RLF1 indoor units on an outdoor AOU36RLXFZ1. It upsizes linesets to 3/8" and 1/2", accommodating a total BTU capacity of 31,600 BTU in cooling. Installation requires special piping and is limited to only 18,000 BTU models. With precise compatibility and top-notch performance, the K9FZ1818 ensures seamless operation and optimal efficiency. Install in under X minutes with common tools.
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Manufacturers Part Number: K9FZ1818
Compatible Part Numbers:
Compatible Brands:Fujitsu
View full details![[Brand] K9FZ1818 - Main view showing fittings kit for ASU18RLF1 and AOU36RLXFZ1 models](http://apcpart.com/cdn/shop/files/K9FZ1818-accessory-for-mini-split-system-k9fz1818-main.webp?v=1777209372&width=1445)
![[Brand] K9FZ1818 - Detailed view of upsized linesets for increased capacity](http://apcpart.com/cdn/shop/files/K9FZ1818-accessory-for-mini-split-system-k9fz1818-closeup.webp?v=1777209373&width=1445)
