Pay in 4 interest-free payments of $49.75 Learn more
Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
lava rocks
page_crafter_three_column_grid_button_container_0-diKqnpNX8N { text-align: left
page_crafter_four_column_image_grid_button_0-UyenVgvMam { background-color: #000
Anchoring hardware is not included—choose based on your foundation type
} #TWO_COLUMN_IMAGES-1gJOGGDx21 { margin-bottom: 10px
Exaco Royal Victorian Low Threshold 4x8 lava rocksExaco Royal Victorian Lower Threshold Kit The Lower Threshold Kit 2025 is the latest upgrade for Janssens Royal Victorian greenhouses, lowering the entry point from the standard 4. 5" foundation frame to just 1 1 4". This makes access safer and smoother, especially when moving wheelbarrows or carts. Unlike the previous KSD Low Threshold Kit, which included a full 4 sided frame and a sliding door lock, the 2025 model is a simplified bottom only